Welcome to G2G sturoc
The problem with upgrading the motherboard etc is that all the motherboard drivers (and video drivers if that changes also) will need updating in Windows. If you're lucky you will get away with simply attaching the old drive intact to the new motherboard & letting windows update the drivers. A lot of times though, this can fail or lead to a buggy windows installation.
If you decide to try it anyway, I would still recommend you backup your most important stuff first, just in case.
There are ways of doing this however in win2000 that will give you the best chance of success. Check out the link below for an article on how best to go about this:http://www.windowsre...board/win2k.htm