We're looking at getting an external USB HD (3-4TB) to attach to our home router. The plan was to split it into 4 partitions... 1) My Time Machine Backup 2) My Extra Storage Space 3) Wife's Time Machine Backup 4) Wife's Extra Storage Space Well... I never really thought about it until I was doing some reading yesterday. The Time Machine backups would be of our laptops, but what to do about the data on the "extra storage" partitions? I know you can include other drives in your Time Machine backups, but if it's on the same physical drive then that does me no good if the USB HD crashes. Does anyone else have a setup similar to this one? If so, what do you do about backing up your extra storage partitions? Thanks!