Hi - My wife and I work from home and both have iMacs (mine is a little newer than hers and has the thunderbolt port while hers doesn't). I'm wondering if anyone out there has any thoughts on the best way to backup both of our macs to the one device. I was hoping there was a way we could stick a drive on a shelf and then our computers are both backed up to it for peace of mind. I'd also like the ability to be able to manually add files that I don't want to keep on my mac, such as old memories or client work. As a possible complication, I also have a little portable drive I have connected to my iMac most of the time but sometimes take it with me that has lots of client work on it as I sometimes work from my laptop. I'd like to be able to back this up too. (Also, is getting OSX Server helpful for this?) Thanks in advance!