I gave up on FF 3.05, and I have been using Chrome for the last month or so. I find that it is much faster than FF. However, it doesn't have any of the add ons that FF has.
I recently read someplace, maybe Lifehacker, that addons are coming to Chrome later this spring.
I have also used Opera, and I find it to be faster than FF as well.
I would suggest that you try Chrome and Opera and see what you think. Opera has a big learning curve, but may be worth the effort.
Good luck.