I am on the market for a Firewire hard drive and I have been contemplating a 2.5 inch interface for portability benefits. If I understand correctly, many of these drives are powered by the bus and do not need a power adapter. If any of you all have experience w/ any particular 2.5" drives, throw them my way...and if you truly believe that the larger 3.5" is the way to go in any case, fill me in why....but I'm all about the 2.5" even if they tend to cost and arm and a leg. Good looks is a plus (sounds like a personal ad) cause the SmartDisk brand is hideous. Thanks in advance.