Best air cooler would be the Sunbeam Core Contact, Thermalright Ultra-120 Extreme, OCZ Vendetta 2. The core contact is the the best performance per $. It is equal to and sometimes beats the TRUE, and costs less. Put a good fan on it though, dont use the stock one. Buy a high RPM delta or soemthing.

Also, the Gladiator cooler from OCZ is worse than the Vendetta 2. It has larger heatpipes and costs more, but somehow it performs worse.