FrostyTech.com bust out a review of the very first AMD socket AM2 heatsink to hit the market from Zalman, it's called the CNPS9500 AM2. You've gotta appreciate any heatsink which gets described as "brightly chrome plated to give it that nuclear winter, Terminator 2 android feel."
"The Zalman CNPS9500 AM2 heatsink is compatible with all current AMD Athlon64 processors, and in particular the just introduced AMD 940-pin AM2 processor and socket AM2 heatsink retention frame. The Zalman CNPS9500 AM2 is a full copper heatsink, except its surface has been brightly chrome plated to give it that nuclear winter, Terminator 2 android feel.
The Zalman heatsinks' 92mm fan is internally illuminated with a pair of nVidia green LEDs, which create a very spectacular light effect when the clear frosted fan blades spin at full speed inside a darkened case. As you'll see momentarily in the thermal and acoustic test results, the CNPS9500 AM2 heatsink is a very effective thermal solution at low fan speeds."