Im pretty sure I can do this but though I'd run it by all of you. I have a new 120gb HD (SATA) on the way that I will use fot my master HD. Can I hook up that HD and then the older 80gb HD (ATA100) thats in my system now for a backup. I would assume that then I would set them up accordingly in the BIOS afterward. This is my very first build so I thought I'd check. THANKS!