Sublime Merge - Fast git client with integrated merge tool from the makers of Sublime Text
TortoiseSVN - The coolest interface to (Sub)version control
GITK - The GITK - Generalized Interface Tool Kit is a set of libraries, which form a (user) interface...
SnailSVN - Similar to Tortoise SVN for Windows but integrated into Finder
Bit - Easily share reusable components between projects and applications to build faster as a team.
SmartSVN - SmartSVN is a graphical client for the Open Source version control system Subversion (SVN).