I have a i7-3770k and I am stil using the stock cooler, unfortunatly. I am looking to spend a max of about 50$, and I was looking at:
Zalman CNPS14X
Thermaltake Frio
Cooler Master V6
Xigmatek Dark Knight
Cooler Master Hyper 212 Evo
P.S. I am going to be using MX-4 thermal paste with any of these coolers, and I am open to other suggestions.