Svn?
I use Vice Versa to automatically sync/backup my stuff to another PC. Works well in conjunction with the scheduler they have also.
why cant you do it via the net, and use dropbox ?
Could try Windows synctoy.
if you mean, that the dropbox folder only syncs things within that folder, there is a fix around that lets your sync files anywhere on your pc
if you read up in the dropbox forums, youll see it..