I know how you feel bro, I got a little pc fan in my box at the moment

http://i641.photobucket.com/albums/u...d/DSC_0128.jpg

Running on a 5v Motorola charger, I'm too lazy to go out and buy a 12v lol. I just use that to move the cold air up from the bottom of the box to the top where the light is. But Im cheating lol -

http://i641.photobucket.com/albums/u...d/DSC_0060.jpg

I got a big fan outside the box and I leave the door open.