Trust me, if I could use Firefox, I would, but IS has it blocked. I'm using IE7 because it has a few of the benefits of Firefox like tabbed browsing. Hilariously enough, when I tried to install IE6, M$ wouldn't let me, because I already have a newer version (even though the newer version doesn't let me do the things I want to do).
At home I use Camino (Firefox, Mac-ified).
Don't worry about me, I have mountains of podcasts to listen to (including the up and coming MyGamer-cast, I hope), but in several months, IE7 will become the new standard, so it's best if you solved the problem anyway.