I need something to back up my 40GB Emac. I got an Acomdata 3.5" external hard-drive enclosure. For a hard drive, the Seagate Barracuda series seems to have good prices, and I understand Seagate is supposed to be very good, correct? One thing is, the 250GB isn't much more expensive than the 80GB, but if I get the 250GB I'll want to keep it on the desk and fill it up. I was thinking my backup would be safer if it wasn't plugged in. I was thinking maybe get one of each, and keep the 80GB somewhere else when I'm not copying onto it. Does this seem like a good plan? Or, would it be safe to just get one drive and leave it hooked up? We've had lightning damage before, but nowadays I would have everything on a UPS.