Google Chrome for Mac
If, like me, you have been using the beta version of Google chrome for mac, you will be pleased to learn that Google have now released the final version. Chrome for mac is only available for intel based macs, OSX version 10.5 or later. Being a long time Firefox user, I've been noticing a slowdown in performance lately that has been causing a little frustration, especially when it comes to developing. A pet peeve of mine is having to wait for the browser to finish loading pages - it's simply lost time that i could put to better use.
Chrome also comes with a nice bookmarks migration tool to easily import bookmarks from your other browsers, and includes up to the minute support for HTML5 and the emergent new web technologies. Bundle this with a with a nice clean interface, and you have an improved web experience.
So, if you've yet to try it, or haven't updated form the beta, I recommend to give it a go.