Hey there sinbad
I'd highly recommend the Noctua NH-U9B SE2http://www.newegg.com/Product/Product.aspx?Item=N82E16835608016
I just recently switched from the AMD stock cooler on my Phenom 955 which was ridiculously loud, to the Noctua. I LOVE the Noctua - deathly silent and keeps the CPU frosty cold!
It's in more of the pricy range, but I think it's definitely worth it!