NFS: Windows client?

In my recent studies for the RHCE I have covered the NFS file sharing system. I have used this system in the past, but not extensively. I have been told that it is faster than SMB by a great degree between Linux and Unix boxes so I am going to run some tests on it and see how it works. I am currently downloading Services for Unix from Microsoft so that I can test the Windows client that they provide for NFS. I'll post results.