I second this. Crashplan is a great service with very generous pricing, considering that you get unlimited space and file versioning. You can run it directly o

I second this. Crashplan is a great service with very generous pricing, considering that you get unlimited space and file versioning. You can run it directly on the machine you're backing up, but I have mine on my Linux home server in a headless setup. All my computers back up to it via Bacula, which is then backed up via Crashplan.