Hi Mike, I use Opera, even paid for it, love it, but there are still some sites that only work properly with IE. I think you'll find the same with Firefox, so don't uninstall IE just yet.
I had a look at Firefox, but having already paid for Opera I didn't find anything enough to tempt me to change.
Cheers Brian Life's too short to drink white wine and red wine is better for you too! :-)
I have been using it for a little while and its great. As RB syas, You will need to keep IE becuase some sites, like the MicroSlough DirtyWindow Update sites wont function without it.