Which svn client to install on Windows 7 machine?

EDIT: By now TortoiseSVN includes the command-line client as well, if you choose to install it:

I've been using SlikSVN for some time now because the “official” CollabNet-branded command-line client is behind registration and stuff. It's still built from exactly the same sources and shares the same features, bugs, etc. so for all intents and purposes it's the same.

I use CollabNet's command line client for windows.

http://www.collab.net/downloads/subversion/

It even has update notifications.