Hey guys, quick question. I know the MacBook uses a SATA hard drive. I have the black one with the 80GB, but its brand new and im lookng to see if it might be worth selling on eBay and buying a 100 or 120gb drive. My question is, when I go to TigerDirect, it doesn't say SATA, but says 2.5" mobile hard drives. And under interface, it says Mobile Hard Drive. Is that what I need? Or is there something different? Thanks.