Frostytech have a new heatsink review for us today - have a look at the Akasa AK-975Cu cooler.
"The Akasa AK-975Cu is a compact little Intel socket 775 heatsink that stands no more than 77mm tall. It comes with a 70mm PWM fan that varies in speed from 1000-3500RPM, and a convenient patch of pre-applied thermal compound on its base. The cooler is based on a copper block with aluminum fins and a pair of copper heatpipes to help distribute the heat to stubby cooling fins. All joints are soldered to lower thermal resistance.
The heatsink is compatible with socket 775 Intel Pentium D/4 and Core 2 Duo CPUs, specifically in a 2U rack mountable chassis environment. If you recall, servers and other rack mounted enclosures are packaged in boxes that conform to the 1U, 2U, 3U etc. sizes. Each Unit of space is equivalent to 1.75" (44mm)."