FrostyTech has posted a Tocools Novasonic-AlCu Heatsink
Review

The Novasonic-AlCu is a large Socket A heatsink (rated for AthlonXP 3200+ and higher) built primarily from a machined block of extruded aluminum. Tocools have ingeniously created a triangular base within the heatsink by machining the individual fins from the raw aluminum in such a way as the central area peaks to 20mm - in effect creating a toblerone down the center of the Novasonic-AlCu. Tocools call this technique the "copper pyramidal core," being that a triangular copper insert has been soldered into the base so that it comes in direct contact with the core of the processor. The next step in the evolution of the Novasonic design will be an all-copper cooler, but we may have to wait a little longer for that Athlon64 heatsink to materialize

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