Hello, I'm looking to buy a new cpu cooler for my HP envy 750-xt. It has a 4690k and the cooler that came with it just doesn't cut it. I really don't want a water cooler, and would much rather stick with air cooling. Any suggestions? I don't think I'll be overclocking anytime soon, but i would like to bring my temps down some just in case i do in the future. Thanks