I have a used 80 GB Seagate Barracuda ATA IV hard drive model ST380021A that I pulled from a working system with a fresh install of XP Professional. It was working when I pulled it but from time to time I would have to use my XP disc to boot the system so you may need to do a repair on the boot sector. I am asking $50 shipped or I would trade it for a decent pci express video card.:up