Synch help.

Hi everyone,
This may have been asked before but i can't seem to find any information.
I'm going to be using my MacbookPro for most of my design work at work soon and i need a way to ensure that when i save all my files on the mac that once im back at work, the files can synch back to the pc (xp).
Mainly so if i am away, other staff can access the files.
Does anyone know of the best way to go about this?
Look forward to your advice!
Josh

 

Dropbox looks pretty good, however, i'm thinking more along the lines of something where after a night of work at home, when im back in the office, the files, say at 10am every morning, synch up locally over the office wireless network.
Maybe i'm asking for too much?