What are some alternatives?
When comparing SmartSVN and kdeSVN, you can also consider the following products
TortoiseSVN - The coolest interface to (Sub)version control
Slik SVN - SlikSVN is a free subversion client for the command line.
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...
Cornerstone 4 by Assembla - The ultimate Subversion client for Mac
VisualSVN - VisualSVN - Subversion plugin for Visual Studio