Hey guys, i'm getting a stock 2 ghz macbook and upgrading the RAM and the hard drive from there, but i want to keep the stock hd to use as an external backup kind of a deal, or just something to store media on. What kind of external hd case would you guys recommend? I've been looking around and getting pretty confused - some only support IDE drives, and SATA cases are harder to find? What kind of interface recommended, FW/USB2? Does USB power things like FW?