I used this Thermaltake V1 for the last 2 yrs on an AM2 socket.
variable fan speed, a little loud on high, pretty quite on low-mid fan speed.
kept my my 6400+ 10C cooler than stock AMD HSF.
was a good cooler for 2 yrs than the fan died.
another thing to consider is that most motherboards are only rated for 350 grams of weight for a CPU HSF, ALL the large after market coolers are way above that, most are double, some of the new ones are triple+ that pushing or exceeding 1000 grams.
not saying you can't or shouldn't use the heavy ones, just if you do be EXTREMELY careful if you move the tower or you can crack the motherboard.