I just bought a 20" ACD and I think I'm starting to really like it... plus it's going to save wear and tear on my couch! So I've been experimenting on how I want to have everything hooked up and where. Previously, with just my MBP, I would do Time Machine backups after the notification annoyed me for a week or so, so I'd have to dig out the external HDD, plug it in, and let it do it's thing. I'm looking into getting a Twelve South BackPack and leaving it connected to the ACD. Now, when I unplug my MBP from the ACD, do I need to stop, sign on, and eject the disk? I'm guessing if it's in the middle of a backup that would be the best thing to do. What about if it's been sitting there for a couple of hours and I'm taking MBP to bed? Maybe getting a TC would be best, especially for a MBP? And if I do get an TC or AEBS, would I need to go in and eject it as a network drive before leaving my apartment?