.htaccess Clean-up

Hey, was wondering if you guys could help me clean up my htaccess file, as i know nothing about it.

RewriteCond %{HTTP_HOST} ^www.nybodyart.com$
RewriteRule ^/?$ "http\\:\\/\\/nybodyart\\.com" [R=301,L]
RewriteCond %{HTTP_HOST} ^nybodyart.com$ [OR]
RewriteCond %{HTTP_HOST} ^www.nybodyart.com$
RewriteRule ^wiki\\/$ "http\\:\\/\\/wiki\\.nybodyart\\.com\\/" [R=301,L]
RewriteCond %{HTTP_HOST} ^nybodyart.com$ [OR]
RewriteCond %{HTTP_HOST} ^www.nybodyart.com$
RewriteRule ^forums\\/$ "http\\:\\/\\/forums\\.nybodyart\\.com\\/" [R=301,L]
<IfModule mod_suphp.c>
suPHP_ConfigPath /home/danny/public_html/wiki
<Files php.ini>
order allow,deny
deny from all
</Files>
</IfModule>
FileETag None
<FilesMatch "\\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf|xml)$">
Header set Cache-Control "public"
Header set Expires "Thu, 15 Apr 2012 20:00:00 GMT"
</FilesMatch>
#compress text, html, javascript, css, xml:
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml          
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterbyType DEFLATE image/ico                
AddOutputFilterbyType DEFLATE image/gif
AddOutputFilterbyType DEFLATE image/jpg
AddOutputFilterbyType DEFLATE image/png
AddOutputFilterbyType DEFLATE image/vnd.microsoft.icon
#Or, compress certain file types by extension:
<Files *.html>
SetOutputFilter DEFLATE
</Files>
<Files *.css>
SetOutputFilter DEFLATE
</Files>
<Files *.js>
SetOutputFilter DEFLATE
</Files>
<Files *.jpg>
SetOutputFilter DEFLATE
</Files>
<Files *.gif>
SetOutputFilter DEFLATE
</Files>
<Files *.jpeg>
SetOutputFilter DEFLATE
</Files>
<Files *.png>
SetOutputFilter DEFLATE
</Files>
<Files *.swf>
SetOutputFilter DEFLATE
</Files>
<Files *.txt>
SetOutputFilter DEFLATE
</Files>
<Files *.ico>
SetOutputFilter DEFLATE
</Files>
# BEGIN W3TC Browser Cache
<IfModule mod_mime.c>
    AddType text/css .css
    AddType application/x-javascript .js
    AddType text/html .html .htm
    AddType text/richtext .rtf .rtx
    AddType image/svg+xml .svg .svgz
    AddType text/plain .txt
    AddType text/xsd .xsd
    AddType text/xsl .xsl
    AddType text/xml .xml
    AddType video/asf .asf .asx .wax .wmv .wmx
    AddType video/avi .avi
    AddType image/bmp .bmp
    AddType application/java .class
    AddType video/divx .divx
    AddType application/msword .doc .docx
    AddType application/x-msdownload .exe
    AddType image/gif .gif
    AddType application/x-gzip .gz .gzip
    AddType image/x-icon .ico
    AddType image/jpeg .jpg .jpeg .jpe
    AddType application/vnd.ms-access .mdb
    AddType audio/midi .mid .midi
    AddType video/quicktime .mov .qt
    AddType audio/mpeg .mp3 .m4a
    AddType video/mp4 .mp4 .m4v
    AddType video/mpeg .mpeg .mpg .mpe
    AddType application/vnd.ms-project .mpp
    AddType application/vnd.oasis.opendocument.database .odb
    AddType application/vnd.oasis.opendocument.chart .odc
    AddType application/vnd.oasis.opendocument.formula .odf
    AddType application/vnd.oasis.opendocument.graphics .odg
    AddType application/vnd.oasis.opendocument.presentation .odp
    AddType application/vnd.oasis.opendocument.spreadsheet .ods
    AddType application/vnd.oasis.opendocument.text .odt
    AddType audio/ogg .ogg
    AddType application/pdf .pdf
    AddType image/png .png
    AddType application/vnd.ms-powerpoint .pot .pps .ppt .pptx
    AddType audio/x-realaudio .ra .ram
    AddType application/x-shockwave-flash .swf
    AddType application/x-tar .tar
    AddType image/tiff .tif .tiff
    AddType audio/wav .wav
    AddType audio/wma .wma
    AddType application/vnd.ms-write .wri
    AddType application/vnd.ms-excel .xla .xls .xlsx .xlt .xlw
    AddType application/zip .zip
</IfModule>
<IfModule mod_expires.c>
    ExpiresActive On
    ExpiresByType text/css A31536000
    ExpiresByType application/x-javascript A31536000
    ExpiresByType text/html A3600
    ExpiresByType text/richtext A3600
    ExpiresByType image/svg+xml A3600
    ExpiresByType text/plain A3600
    ExpiresByType text/xsd A3600
    ExpiresByType text/xsl A3600
    ExpiresByType text/xml A3600
    ExpiresByType video/asf A31536000
    ExpiresByType video/avi A31536000
    ExpiresByType image/bmp A31536000
    ExpiresByType application/java A31536000
    ExpiresByType video/divx A31536000
    ExpiresByType application/msword A31536000
    ExpiresByType application/x-msdownload A31536000
    ExpiresByType image/gif A31536000
    ExpiresByType application/x-gzip A31536000
    ExpiresByType image/x-icon A31536000
    ExpiresByType image/jpeg A31536000
    ExpiresByType application/vnd.ms-access A31536000
    ExpiresByType audio/midi A31536000
    ExpiresByType video/quicktime A31536000
    ExpiresByType audio/mpeg A31536000
    ExpiresByType video/mp4 A31536000
    ExpiresByType video/mpeg A31536000
    ExpiresByType application/vnd.ms-project A31536000
    ExpiresByType application/vnd.oasis.opendocument.database A31536000
    ExpiresByType application/vnd.oasis.opendocument.chart A31536000
    ExpiresByType application/vnd.oasis.opendocument.formula A31536000
    ExpiresByType application/vnd.oasis.opendocument.graphics A31536000
    ExpiresByType application/vnd.oasis.opendocument.presentation A31536000
    ExpiresByType application/vnd.oasis.opendocument.spreadsheet A31536000
    ExpiresByType application/vnd.oasis.opendocument.text A31536000
    ExpiresByType audio/ogg A31536000
    ExpiresByType application/pdf A31536000
    ExpiresByType image/png A31536000
    ExpiresByType application/vnd.ms-powerpoint A31536000
    ExpiresByType audio/x-realaudio A31536000
    ExpiresByType application/x-shockwave-flash A31536000
    ExpiresByType application/x-tar A31536000
    ExpiresByType image/tiff A31536000
    ExpiresByType audio/wav A31536000
    ExpiresByType audio/wma A31536000
    ExpiresByType application/vnd.ms-write A31536000
    ExpiresByType application/vnd.ms-excel A31536000
    ExpiresByType application/zip A31536000
</IfModule>
<FilesMatch "\\.(css|js|CSS|JS)$">
    <IfModule mod_headers.c>
        Header set Pragma "public"
        Header set Cache-Control "public, must-revalidate, proxy-revalidate"
    </IfModule>
    FileETag MTime Size
    <IfModule mod_headers.c>
         Header set X-Powered-By "W3 Total Cache/0.9.1.4b"
    </IfModule>
</FilesMatch>
<FilesMatch "\\.(html|htm|rtf|rtx|svg|svgz|txt|xsd|xsl|xml|HTML|HTM|RTF|RTX|SVG|SVGZ|TXT|XSD|XSL|XML)$">
    <IfModule mod_headers.c>
        Header set Pragma "public"
        Header set Cache-Control "public, must-revalidate, proxy-revalidate"
    </IfModule>
    FileETag MTime Size
    <IfModule mod_headers.c>
         Header set X-Powered-By "W3 Total Cache/0.9.1.4b"
    </IfModule>
</FilesMatch>
<FilesMatch "\\.(asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|exe|gif|gz|gzip|ico|jpg|jpeg|jpe|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|png|pot|pps|ppt|pptx|ra|ram|swf|tar|tif|tiff|wav|wma|wri|xla|xls|xlsx|xlt|xlw|zip|ASF|ASX|WAX|WMV|WMX|AVI|BMP|CLASS|DIVX|DOC|DOCX|EXE|GIF|GZ|GZIP|ICO|JPG|JPEG|JPE|MDB|MID|MIDI|MOV|QT|MP3|M4A|MP4|M4V|MPEG|MPG|MPE|MPP|ODB|ODC|ODF|ODG|ODP|ODS|ODT|OGG|PDF|PNG|POT|PPS|PPT|PPTX|RA|RAM|SWF|TAR|TIF|TIFF|WAV|WMA|WRI|XLA|XLS|XLSX|XLT|XLW|ZIP)$">
    <IfModule mod_headers.c>
        Header set Pragma "public"
        Header set Cache-Control "public, must-revalidate, proxy-revalidate"
    </IfModule>
    FileETag MTime Size
    <IfModule mod_headers.c>
         Header set X-Powered-By "W3 Total Cache/0.9.1.4b"
    </IfModule>
</FilesMatch>
# END W3TC Browser Cache

# BEGIN WordPress

# WPhtC: Disable ServerSignature on generated error pages
ServerSignature Off

# WPhtC: Set admin email
SetEnv SERVER_ADMIN dan@nybodyart.com


# WPhtC: Disable directory browsing
Options All -Indexes

# WPhtC: Setting mod_deflate
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/html text/plain text/xml application/xml application/xhtml+xml text/javascript text/css application/x-javascript
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4.0[678] no-gzip
BrowserMatch bMSIE !no-gzip !gzip-only-text/html
Header append Vary User-Agent env=!dont-vary
</IfModule>


RewriteEngine on
# Unless you have set a different RewriteBase preceding this point,
# you may delete or comment-out the following RewriteBase directive:
RewriteBase /
# if this request is for "/" or has already been rewritten to WP
RewriteCond $1 ^(index\\.php)?$ [OR]
# or if request is for image, css, or js file
RewriteCond $1 \\.(gif|jpg|jpeg|png|css|js|ico)$ [NC,OR]
# or if URL resolves to existing file
RewriteCond %{REQUEST_FILENAME} -f [OR]
# or if URL resolves to existing directory
RewriteCond %{REQUEST_FILENAME} -d
# then skip the rewrite to WP
RewriteRule ^(.*)$ - [S=1]
# else rewrite the request to WP
RewriteRule . /index.php [L]

# END WordPress
<FilesMatch "\\.(ico|pdf|jpg|jpeg|png|gif|js|css|swf|flv)$">
Header unset ETag
FileETag None
</FilesMatch>