One of the biggest advantages to Google's products is that every single one is free - their advertising schemes provide enough revenue to allow them to release everything for free.
And so, the newest entry in the world of Google betas is their browser - Google Chrome. You can check out the Google blog entry here, and if you just can't wait you can grab it here.
I could bore you all with all the technological workings, but I won't - just know that it's fast, secure, and so far I haven't been able to fault it. It's far better than Firefox or IE (or ) in my opinion. It's even open source - so the entire development open source community has free access to it as a base for future projcts.
Check it out if you haven't already.