you might try to contact the guys at ifixit.com. They dont deal in cube parts, but they might be able to find you some by request. The cube was extremely customized....to be a cube :) Would it be better just buy one? Sorry just asking?
Registered: 11/15/07
Posts: 1797
Loc: Florida, USA
You can but it will be a pain. Ebay is your best chance on finding most of the parts.
To make it a bit easier the CD/DVD drive is the same as the drive used in a slot-load iMac and the CPU is the same from a QuickSilver.
In all for a base system you need the following. Case Logicboard CD-RW/DVD CPU 450/500MHz CPU Power supply PC100/PC133 SDRAM (expandable to 1.5GB) AGP 2x video card hard drive