Why do you say #5?
I would have voted for #4...
...because it follows the "directories end with a / and files and webpages end with nothing" convention that seems pretty well-established.
Would #4 even work as far as my mod_rewrite?
I can't even believe I'm considering taking the plunge and breaking my beautiful mod_rewrite for all of this SEO crap?! :rolleyes:
But, @ScallioXTX ; does seem to have some valid points, so I'm trying to come up with the best solution possible...