[ejdyksen]

Git Tower is by far the best GUI I've used for git. It's not cheap ($59), but absolutely worth it, IMO.

It's fast, it's regularly updated and supported, and it's powerful enough to do complex stuff (rebases, merges, cherry-picks, etc).

http://www.git-tower.com/

[Gmo]

That's a mac app though, and I'm working on Windows :)