Hi. I have been looking on eBay to buy an XP OS disc for my new homebuilt computer project, but all of them seem to be $60 or more. There is a guy I know that can install XP plus a few more programs for $40 and still make money doing it... I wonder if anyone out there knows and could tell me. I wanted this to be a learning experience, but I'm also on a budget so that is why I am considering having him do it for me. I'm sure it has something to do with buying in bulk, but I really don't know. Just wondering. Thanks.