John,
It's almost cheaper to buy totally new.

http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.892403 $150

Memory
http://www.newegg.com/Product/Product.aspx?Item=N82E16820148419 $25

Two hard drives
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136769 $150

Power supply, since you'll need a new 24 pin PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E16817153023 $35

Use the case you have, and you're into a new computer for less than $400. You can actually buy a new desktop for less if you go to WalMart or something. The only thing is this doesn't have an OS, and even though you have Windows 2000, I would highly recommend getting Windows 7 Home Premium to take advantage of the 64 bit nature of the CPU. That's another $100. You may also need to buy a DVD burner, which is another $20, since the mainboard doesn't support IDE drives.

Gary

Last edited by Gary Curran; 05/29/12 11:56 AM.
I'm blessed watching God do what He does best. I've had a few rough years, and I'm still not back to where I want to be, but I'm on the way and things are looking far better now than what they were!