4.2 can get kind of rough with Phenom II's. What kind of voltage are you putting through it? How much do you care about noise too? If you have a good chip where you're at about 1.45v and getting that speed, an Xigmatek Gaia or CM Hyper 212+ could easily do the trick. (I agree, H50 blows chunks) What're your current temps saxyd3?
Thanks for the link SAINT19!!! I've just spent the last 2 days fighting with Antec's Kuhler h20 920 and decided to send it back. All research indicate that the NH-D14 is the best air cooler on the market...even passing some h20 systems. Your link saved me time, money and effort.