Prolimatech Panther CPU Cooler
 

According to Legit Reviews, the Prolimatech Panther is definitely a worthwhile contender in the mid-range cooler market. Here's a quote from the review: I was happy with how easy the Prolimatech Panther was to install and shocked that it was able to beat the Cooler Master V8 CPU cooler. As you can see Prolimatech Panther is smaller and weighs less, but it was able to run 7C cooler at load on our Intel Core i5-2500K processor running at 4.8GHz.

http://www.hardocp.com/news/2012/04/...er_cpu_cooler/