I once saw a webpage of one guys interesting cooling alternative. He used chilled coal oil! He basically put his system in a foam box, filled it with coal oil until his system components were submerged, used a pump for circulation of the oil, and something(don't recall what) to chill the oil. Of course such a thing is rather bizarre and a potential mess, but it was quite an interesting cooling Mod. Besides the pump or pumps that one would need, there would be no noise, the whole system would be cooled, and problems from dust could be eliminated.