So I was recently given an old computer, an old Pentium 3 Dell that had been running Windows 2000. It was given to me due to a believed dead HDD, so I figured that I could just mess around with it and get it up and running fairly easy with a new HDD, but I am not sure which HDD to get that would still be compatible with an old machine like this. I've heard that Windows 2000 can only use a max of 126 gigs (or something like that) or so, is there anything else to be aware of when getting a replacement HDD? I was also wondering, all the original boot disks and such that came with it are long gone by now, but it still has the Windows product key, is there anyway to go about possibly not having to pay for a new copy of windows 2000? If not, this thing is so old I'll probably go the "not so legitimate" route to getting an O.S. on there, its just sorta a little project right now. Any help is much appreciated, thanks everyone!