FrostyTech have come out with this review of the Arctic
Cooling Silencer 64 Ultra TC heatsink. Here's a quick excerpt; "The
Arctic Cooling Silencer 64 Ultra TC heatsink is a mid-level extruded aluminum
cooler, and it features the companies signature suspended lower noise
fan. The fan design minimizes turbulence and the noise created by air moving over
the edges of a traditional fan frame, by removing as much of the
fans' frame as possible."