TortoiseSVN - The coolest interface to (Sub)version control
SnailSVN - Similar to Tortoise SVN for Windows but integrated into Finder
RabbitVCS - RabbitVCS is a set of graphical tools written to provide simple and straightforward access to the...
Xversion - Super easy enterprise class version control.
CommitMonitor - CommitMonitor is a small tool to monitor Apache™ Subversion® repositories for new commits.
Slik SVN - SlikSVN is a free subversion client for the command line.