I have serious doubts that fan will be worth the effort ... but, the power supply to the PS could be wired directly to the fan ... computer style fans will run from 3v-12v, usually, will not move enough air in most cases ... small 110volt fans can be had for $10 or less at wallyworld, or a 12volt heavy-duty oscillating fan can be found at autoparts stores for about $25, or even salvaged out of old semi-trucks and schoolbuses sometimes ... :smokin: