i have the zalman 9500 (copper, with blue led's) works like a charm, and is very quite. i could run cooler if i had better airflow in my case (Case upgrade planed to fix that.)
i knew zalman would be the best but there pricey and i didnt see the one freestyle showed me i like it because it has a good AM2 mounting and socket 940 is the same as AM2 right? i look at some sole am2 socket mount fans and they say for only 940