A lot has changed in 2010... I have finally ditched IE!
I still hate Firefox though... but IE8 started lagging for me very bad about 4 months ago. I dunno what caused it, it just changed all of a sudden... the pages very laggy, opening new tabs was laggy... it was just somehow broken. Even re-installing the damn progrmam didn't help..
So I gave Chrome a try and loved it from the very beginning! It's simple like I but faster than any browser I had ever tested (read: IE and Firefox). Since that day I never looked back...