Get chrome.

My office neighbor claims it is much faster. I have yet to see that. I've used chrome 3 times now and everytime a few minutes into using it my machine's CPU utilization spikes to 100% for about 15 second. I also don't like that the tabs appear in the window's title bar in contradiction of the UI standards for just about every mainstream GUI.

However, on the good side, it is made by Google, starts up each tab in its own process (allowing you to use more memory and kill individual tabs without taking out the whole browser), and lets you resize textareas (I know this is pointless but I think it's cool).

I have yet to form an opinion about the "omnibox" (the combination address bar + search box + browser history with suggestions).