Well, Google just came out with a new browser. It should be interesting to see how the IE vs. Firefox vs. Chrome battle will play out. You can download chrome at the link below (windows only at the moment):
Google Chrome - Download a new browser
My first impressions were that is has a really nice look and layout, but it ran slow when I tried opening multiple videos in tabs. It might just be that my computer is slow, but that doesn't happen to me with firefox.