Chrome
I have been playing around with the Chrome browser from Google. If you like fast is is the best I have ever used. It is also clean and efficient with a built in spell checker.
Not so good with this site, you have to use the compact interface, but it is fine at HZ dot net.
I think it uses an IE framework so some will probably discount it based on MS hate. Personally, I think Firefox is okay but have had plug in problems and overall, when you subtract the MS bias it is not really better than IE imo.