|What aegis1 was pointing out if that you won't be able to use the WinXP installation on the hard drive. OEM (Original Equipment Manufacturer) get a deal on Windows but the license is tied to the Computer's motherboard. There are folks that have used NON Compaq motherboards for replacement and get by with Windows still working. However, I don't think that will work any longer. Microsoft recently changed the way things work with OEM version of Windows. |
All in all it isn't worth it considering your would spend around $200 or more for a board and a copy of WinXP.
For another $100 you can buy a new tower running Vista that will no doubt out perform your 4 year old unit.
You should, however, canniblize the computer at the very least. Your hard drive is probably still functional and can be installed as a second drive in a new system. If your display is functioning fine and you are happy with it you can reuse it. Keyboard and mouse can be saved as backups. The memory is useful to someone. Older RAM actually cost more than new because the older types are only in limited production.
If you have room I wouldn't dispose of any of it. Remove the drive as mentioned and leave the rest together for now.
You get the idea?
If you shop retail the store will want to sell you a complete computer with monitor. Buy from Dell Direct or another OEM and you can buy the tower and monitor separately. If you don't need a monitor you don't have to buy one. Look at the link below for an idea.