I use AX-7. I had a Delta -ehe 80x80x38 fan on it. 80cfm of air kept my 1800 at around 31-33C full load. Now I use the Thermal take's Smart fan II on it and I use the thermal probe. Now I hang in the low to mid forties. But I'd take the extra heat for quiet. It is relatively inexpensive and works very well. It's a good combo of copper and aluminum. -- You got nothing on me.
