Allway Sync uses innovative synchronization algorithms to synchronize your data between desktop PCs, laptops, USB drives, remote FTP/SFTP and WebDAV servers, various online data storages and more. Data compression and encryption are supported. It combines bulletproof reliability with extremely easy-to-use interface. Allway Sync also can synchronize your PC data with a Mac via Sync Gateway.
Non-Profit Customers (but not other Customers) are allowed to use Allway Sync for free, subject to limitations as described below. All other Customers are allowed to use Allway Sync Free for thirty days for evaluation purposes only.
We use this in our organization on a few PC's, it allows us to create synchronizations schedules so that we're not transferring large files to remote sites during business hours, and therefore hogging up their bandwidth. Figure'd the 'free' versions would be helpful for others.