I came across this information somewhere else and saved it to a word doc. I believe it will help you. I only wish I could give you the source, but I can't remember.
Below is the procedure for 2k/XP:
All the following steps should be taken before rebooting - if it wants to reboot, tell it "later".
Uninstall all software in add/remove programs directly related to any hardware components that will not be in the new system. Uninstall your antivirus software. Uninstall any service packs and hotfixes newer than what came on your 2K/XP CD. Revert back to the version of IE that came with your 2K/XP CD. Uninstall all devices in device manager that will not be in the new system - if you miss some, no big deal. Change your IDE controller to a "standard dual IDE controller". Note your network/dialup networking settings. Remove any shortcuts on the desktop and startup group that point to any network drives. Shut the machine down. Move the hard drive to the new system or do your hardware upgrade, it's advisable to have a minimum configuration (essentially just a video card, the hard drive, and one CD drive). Boot the new machine into the BIOS setup and disable all onboard components except video if applicable, the important one to disable is USB - and set it to boot from CD first. Boot the new machine to the 2K/XP CD and when asked tell it to do a setup (NOT just a repair). When the setup finds the existing 2K/XP installation, you will be asked whether to repair that installation or install a fresh copy - choose the repair this time. When this is all done, install the new chipset drivers and video driver (if applicable). Then you can systematically enable the disabled components and reinstall the other cards and drives and everything else you removed/uninstalled. If you had previously changed your drive lettering in disk management, you will have to redo it.
