CVS servers

I am wondering how difficult it is to host a CVS server and NFS on Windows XP so that my Unix systems can keep things that are quite large on a system with a quite large amount of disk access. Using Samba isn't an option in a few cases, I also want to keep a lot of forks in cvs for projects I am working on.

Any ideas? I was thinking cygwin but its nfsd has problems. Unix services for Windows would be good but I can never find a copy.