Quote Originally Posted by zabije cie

how could i get a cpu fan to work with an electrical outlet?
If the cpu fan is 12volt you'll need an adapter that can plug into the wall. Cut the one end off (not the end that plugs into the wall) and splice the two wires to the fan wires.
You can get 120v fans from your local surplus store where you can also find cords w/ plugs. Just splice together.

As for the light, I would go for the hps. The increased yield may make it worth the trouble of one plant.