I don't own one yet, but have read about many. The ones most people like the best were by Western Digital, and Maxtor - they have various sized 7200rpm 3.5 inch drives (usually 100-250 gb) and the thing most people liked about them were the ability to use usb v2, or firewire. So, there are multiple inface externals out there. That is what I'm going to look at later today. I don't plan to buy however. I'm looking for an external 2.5 inch exclosures for a couple drives I have left over...a 30gb and a 12 gb. I really don't care which interface they use. I just want small - portable enclosures.