Air cooling at it's best? That's a pretty bold statement to make, but as ExtremeMHz reports, the AeroCool ExtremEngine 3T might just pull it off. Equipped with 140mm fans, this could be the best choice for you if you don't want to take a chance with water.
"When I first heard about this case, I just had to get my hands one as I've been patiently waiting to see which company would jump the gun and release a case with fans larger than 120mm. When it comes to PC cases, all manufacturers have really hit a standstill in terms of providing better air cooling. While 120mm fans paired with a superbly designed case can indeed provide sufficient cooling for overclocking, it is still not as good as many of the other alternatives out there."