Very convenient self-installers can be found at metissian.com – I started with fink but it needed to download about 10243 additional packages, this is much easier.
Update: Pier Fumagalli mentions scplugin, a macosx Finder plugin for Subversion (CVS support is planned) – need to have a look.
bertrand's brain grep 
Thanks for the svn link. I had built it from tigris’ source code, but they don’t provide much help with installing the dylibs etc in the right places. This was a lot easier!