Apparently from the reviews I've read, the new Thermaltake Dragon Orb 3 is a good performer, just above middle of the road.
Apparently they (Thermaltake) learned that their fans sucked, and went ahead and used some sort of 38cfm 60mm fan. And redisigned the heatsink part to a 2 piece pressed design. Finally if you want a cool looking heatsink, and a decent performer, Thermaltake delivered. Still not adequate for extreme overclocking, but should handle 1.2 - 1.3 ghz fairly well.
<b>"These are my thoughts, your mileage may vary."