I am looking for a way to back-up one or more Macs for some family members that are not very tech savvy. I would love to have something automated put in place. I remember that Apple used to have a wireless hard drive (Time Capsule) that you could set up to automatically receive back-ups from a Mac (I believe). I know that the Time Capsule is out of production. What are some good alternatives? Ideally, I would like something that is either wireless or could plus directly into a wireless router/gateway, and would interface well with Time Machine. Also, could one drive be set up to receive back-ups from multiple Macs? I have not had any direct experience with Time Capsules and very little experience with Time Machine, so I apologize if I missing something.