Setting up a Subversion repository is one of those things that I can never seem to remember how to do. I guess that's because you tend to do it once at the start of a project and it might be 6 months before you need to do it again. And by that time you've forgotten how to do it and need to go search through the docs.
So here is a very quick guide to setting up a new repository.
$ svnadmin create path_to_repository
$ svn mkdir svn://path/to/repo/myproject
$ svn mkdir svn://path/to/repo/myproject/trunk
$ svn checkout svn://localhost/repository/project/trunk