zalmans are the way to go with air cooling.
if your lazy and don't wanna spend 200 plsu on water cooling, then just get 2 intake zalmans, and 2 exhaust zalmans.
Than get that huge ass zalman cpu cooler, forgot its name, will tell you later.
And you will have a computer that is as silent as a water cooling thingma jiggy.
plus, you don't take a chance of being a retard and frying something.