to comment on this. I put a 120hd in my 3y.o. comp. I was able to transfer eveything over and it works fine. The only prob is that my comp or mobo only reads 111 gb instead of 120gb. I have the original in there too that is 20gb. I think there something about the mobo and how much hd gb is can reconize. I would like to get my other 9 gb if someone could tell me it's possible and how to do it.
P4 2.8 HT Prescott, DDR400 256mb Dual Channel, 120GB HD @7200 rpm, 80GB HD @7200rpm, 16X DVD, 4X DVDR, 480W PSU.