Ubiquity promises to be awesome (video link); it is an attempt at
"connecting the Web with language in an attempt to find new user interfaces that could make it possible for everyone to do common Web tasks more quickly and easily."And I'll bet it'll be integrated tightly with Firefox.
Google Chrome is very promising, but I've switched back to Firefox for day-to-day browsing, and it only gets better with time. Get Firefox and add some extensions.