SourceTree

SourceTree screenshots

Manage Git and Mercurial repositories from one single place
Main window
SourceTree 1.5 : Main window

Alternative downloads

Zero Install
Decentralized cross-platform software-installation system.
2.9.6
FREE
Microsoft Visual Studio Tools for Git
It's a Team Explorer extension to provide source control integration for Git.
0.8.5.1
FREE
ISS Smart Flow
Software tool designed to help in workflow management tasks.
1.9.4
FREE