I'm just thinking the heat output of most core2duo's is a lot lower than that of a prescott etc.
All Conroe and Allendale based processors are specified to out put 65W TDP. Equivalent AMD processors are specified at 125W (FX-62) and 89W for the X2 3800-5000+
I also vote Thermalright Ultra-120. Also the Ultra-120 Extreme and IFX-14 Fire Extinguisher are almost out (Sidewindercomputers said next two weeks. Heatsinkfactory said early April).
had a look at the reviews of the Scythe Infinity and the Tuniq Tower on this and other sites.The Scythe seems to be slightly better at cooling and is just a bit cheaper.
Going to buy the Scythe tomorrow and get it Tuesday