this looks interesting...

http://cooldrives.stores.yahoo.net/usb20toideab.html

it says it supports dc power, although, I don't quite get that unless there is an adapter...

Check this out though, this might be the ticket, if you have one of those usb to ide converters for the drive, or a tight usb drive kit...

http://store.mp3car.com/ProductDetails.asp?ProductCode=PWR-022&Show=TechSpecs
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