I'm building a new site right now and I would like to create the main nav using text links for accessibility, seo, and all that stuff. But the problem I keep coming back to is that it looks bad in IE and FF because of the lack of anti-aliasing (looks fine is Safari because it includes anti-aliasing). Is there any way I can make the nav look better or should I use images instead?

http://www.practisinc.com/tmp/