what do you mean not powerfull enough, just have your cpu fan blowing on there, thats chilled air, around 10/15C that seems fine to blow on a CPU to me! my ambient is 30, another 15 degrees would help ALOT. yeah, a room AC would work good just have that blow directly through your system...or for those of you with the AC moutns on the ground, set your system next to that, and duct it to go through it!