I purchased the Wiebetech 120GB bus-powered drive because it is 7200RPM. It's larger than I'd like (3.5" drive inside casing) and a little noisier than your regular bus-powered unit (fan at back) but it's not given me any issues with capture/playback. Using it with a 17" PowerBook has been reliable but if I accidentally mix up my work's 15"PB power cable (45W) with the 17" cable (65W) it spins up but just won't mount - when I first mixed up the cables I thought the drive had died - panic!!! ;-} I've also tried capturing to one of my Work's external, bus-powered, 4800 or 5400RPM, 2.5" drives I received the 'dropped frames' error when capturing. I believe you can now buy 7200RPM 2.5" drives but they may still max out at 60 or 80GB. Cheers, Coj Preston <Boardrider at aaaHawk.com> I would be concerned with HD access speed and rotational speed rather than size. I guess there are some 7200RPM 2.5" HDs out now and I would suggest them if you are going 2.5". Personally I would not do my editing off of a standard 4200 RPM external. Huiccups in data transfer just are not worth it. If you are really going to drive this thing hard with multiple audio and video tracks you will want to be careful. I would say iMovie would work ok on a 5400rpm 2.5". It's good that you are being cautious in your purchasing as so many people buy first and ask seecond. best -Preston > Think I can get a one comparable to the one below for under 24000 >yen? And if so, do you suggest a specific store? One of my bigger >concerns is the physical size: >>>http://eshop.macsales.com/item/Other%20World%20Computing/MEXPFW80GB/ > >Daniel