I have a 2nd gen 1TB TC, which I've had for over 3 years now. I've begun running out of space on it and considering replacing it, but I wanted some answers first. If I get the AEBS and attach an external HD to it, would this be the same as buying a TC? If so, what's the benefit of buying a TC over an AEBS + HD setup? Would the settings and such still be the same in Time Machine? Thanks!