Is there anything wrong with the 160 GB 2.5" SATA drives? They're not too common. Or is that just because they're expensive? This should be the best choice: Seagate Momentus 5400.3 160GB 5400RPM 12.5ms 8MB 2.5" SATA Correct? Edit: I'm unable to find the Momentus 5400.3 SATA drive on seagate.com (http://www.seagate.com/products/discselect/index.html). Weird.