I see you are going for liquid.
Have you considered air?http://www.newegg.com/Product/Product.aspx?Item=N82E16835103099
That's the Cooler Master Hyper 212 EVO. We just put one on an AMD system for someone, the processor had died. Put the same type of chip with artic silver and one of those, about a 20 degree temp drop at idle.