http://www.expandrive.com/expandrive
Right now the best Cloud-storage desktop clients: Dropbox/Google Drive/Box/Copy/OneDrive, all do sync of the entire repository (unless you're willing to do the work of selective sync). Apart from that you're not left with many options, other than the web, for moving data to and from your giant 1TB account. ExpanDrive bridges that gap by providing access as a network drive. You connect and interact with the data without needing to bring it all in. We keep a big local cache, and do writes in the background so your saves feel instant, like Dropbox. If you've not checked out the software recently, take another look.