My boss has a Macbook Pro that he uses here at work, and keeps an iMac at home, and stores files on both of these systems and on the Windows fileserver here at work. He'd like to sync all three, with true three-way synchronization, without using an external service like MobileMe or Windows Live Foldershare. I think he's got around 20 gb of data to sync, total, but only a couple hundred mb will change, at most, on any given day. Has anyone run into this before? Google turned up a fairly complex solution involving rsync and a fourth server running FreeBSD, but I was hoping for something a little more user-friendly (and admin-friendly, in this case). Thanks in advance.