I think you will find a board for a Dell is amazingly close to the price for a new machine. Funny how that works huh?
They don't use much "industry standard" stuff either. Most Dells even have a strange power supply connector layout. I doubt you can buy a 3d party board that even fits in the case. I tried to build a Dell "woodie" (from Ebay parts) but I never got enough real Dell stuff to get it going.
