if you wanted to do something like this in a xbox case they can be picked up damn cheap, i won one on ebay for £4.50 once (RRoD Console, so entire caseing, metal cage, and the scrap logicboard)

Out of intrest, did anyone else try this? still a little unsure if the firmware "updater" did anything, or weather no one ever thought of trying a older os / mac os rom before