Let me throw another variable at you here. I just came across this product called
MC462 from a company called
Swiftech. It seems to be a new product. Their older product won Tom Pabst shootout of Socket A coolers.
This product seems to be 2 steps ahead of the other one, in that the base is all copper, it looks really huge, and is probably the cause of just the heatsink without fan to be 560g, which is over 1lb. The heatsink seems to be bigger than the socket, big enough to require 80 mm fans, with wich you can get better performance at cost of less noise (based on the fan in use).
I wish someone (Anand and the team) would review this product. In fact I am going to e-mail them, to suggest they review it.
BTW, I was also deciding between Alpha and Hedgehog, when I came across their website. I am in the planning stages to build a new Socket A Athlon based system.