Regarding support for CVS, our Why Support? introduces our
support offerings. Standard Support will cover most small groups for $6000/year. Basic Support is available for
CVS on Windows or Linux at $200/user.
site includes CVS documentation, a search engine which is specific to
CVS sites, and more.
Molli's site includes a list of software related to CVS, and more.
The "How can I do revision control?" page is a very nice introduction
to why you may want to use version control at all (particularly aimed
at programmers). The rest of the site looks nice too (those parts
which are completed).