if you use a cheap enclosure with a cheap chipset and a cheap USB cable, then, yes, USB will be much slower when compared
while firewire is still faster,its usually not noticable. maybe an extra meg, maybe two depending on the usage and setup.
personally i use my drive all the time to help fix computer problems or truck files around to friends. if my drive wasn't USB i certainly wouldn't have the ability.
heres an idea. get one with both interfaces
