http://www.instructables.com/id/Build-a-Nintendo-NES-PC/
I want to build this so badly, but ventilating it would be hard to do without screwing up the case... I have a 2.5 GHZ motherboard and it needs ventialtion no matter what!
My dream is ruined!
That's really cool. You could always just put a vent in the back, if that would work