hold up, what i was saying was that i think a mini fride uses a peltier, and i think you can buy them the same size as the cpu, i dont think putting the pc in a mini fridge would be that effective, buuut, you could take the mini fride apart and put (if it is a peltier) in the pc, if its just a fan then i wouldnt bother cos out could just use a regualr case fan, which would be more effective, but its the insulation which keeps the fride soo cool, so pehaps try and utiles that some how.
but yea im thinking of using a peltier for my pc, its risky, but would be sooooo cool!