my freind is a proud owneer of an xbox 360. from wat he has told me, microsoft has secret built in devices that only are in the xbox and cannot be recreated. for instance he told me taht there is this little divise that is in the xbox 360 taht u cannot take out which if u play online and microsoft catches you hacking with this special chip thing that changes somthing in the games, microsoft will basicly sent a EMP pulse to your game system and fry it. :O because of these little part in the system, it is very difficult if not impossoble to modify the xbox with other parts because of the compatibility of the processor and (dashboard).