I have a 3TB Time Capsule, and 4 macs backing up to it. Its close to full. My internet connection is slow, so the internet based services aren't going to work, and having 4 separate external hard drives for each mac, seems crazy. I finally got around to getting two external 3TB USB drives that were on sale. My plan is to connect the USB drive to the Time Capsule and archive it using the airport utility. Then do that for for the other drive, then keep one off site and and one at home. Updating and rotating the drives every few weeks. The thing is, I haven't seen anything about restoring this archive back to a time capsule or what you can do we these archived time capsules. Can I just plug one of these drives into my mac and have it function as a time capsule? I also think that re archiving the time capsule every few weeks might be an issue also. Any suggestions on a backup procedure using a 3tb time capsule and 2 external 3tb drives?