Remote CVS inquiry

[vasarab]

The coming year will require from me a good bit of travelling. I will
be taking with me my notebook, to continue making a living by doing web
development projects, however, I'd like to keep my desktop PC in sync
(which will remain always-on while I'm away). Right now I have my
desktop computer make nightly backups at 2AM to three seperate hard
drives, and I'd like to continue this. Lastly, if possible, I would
like to keep the databases in sync as well (which are around 15MB
currently). What options do I have? Can I set up a remote CVS deal? The
only requirement I have is that security be good, because my desktop
connection will be wide-open on whatever port I use (presumably 2401).

I'm running Win XP on my desktop computer and OS X on my notebook,
although I can have Win XP running on both machines if needed. I will
have internet access throughout. Thanks!