If you are a single developer looking for some quality Version Management software, you can't do better than Seapines Surround.

http://www.seapine.com/scmfreelicense.php

It's not a free product, as it can tackle enterprise level VM, but for a single developer they are letting you have a free licence. I've used subversion, Sourcesafe and PVCS and this beats them all. Well worth a look.

Oh and no I don't work for them, but I have bought licences for where I work.