We recently purchased a system for security using an AMD Athlon computer running XP Home. However, I would like too hook this computer up to the Windows 2000 network. I would like to get the computer running 2000 Professional like most of the other computers here. Do I have to buy the full blown 2000 Professional license for this computer to get a disk to load it or do I get some kind of discount since I am licensed for XP Home and am downgrading to 2000 Professional? I usually load 2000 on my XP machines using the Dell Reinstall Disk (unfortunately, this is not a dell).