I am using site5 for my rails hosting (for how long? The fcgi is just not stable ...) and I host the source code of my projects with subversion.

The svn integration in Netbeans can be slightly improved, as I could not check out my project using the GUI, I ended up using the command line and then imported the rails project into Netbeans ...
svn co svn+ssh://YOUR_USER_NAME_HERE@21croissants.com/home/YOUR_USER_NAME_HERE/rails/svn_repository/YOUR_PROJECT_HERE/trunk YOUR_PROJECT_NAME_IN_YR_LOCAL_MACHINE_HERE