Git Extensions is a toolkit to make working with Git on Windows more intuitive. The shell extension will intergrate in Windows Explorer and presents a context menu on files and directories. There is also a Visual Studio plugin to use git from Visual Studio.
Features - Windows Explorer intergration for Git - Visual Studio (2008/2010/2012) plugin for Git - Feature rich user interface for Git - Single installer installs Git, GitExtensions and the mergetool KDiff3 - 32bit and 64bit support!