Here a great piece of sync software by windows for windows machines. It took me about 5 minutes to configure and set up folder sync on my network with my main Windows computer and my Ubuntu 12.04LTS. Works like a charm.
SyncToy 2.1 is a free application that synchronizes files and folders between locations. Typical uses include sharing files, such as photos, with other computers and creating backup copies of files and folders. Download Link Here!