I have rebuilt my system into an Antec 900 Gaming Case. Cooling is great! My GTX275 never goes above 55c and my E8500 idles at 38c and never goes above 55c. My problem is the 4 fans in the Antec case allready seem to be accumulating dust at an allarming rate. Can anyone suggest filters that will reduce the intake of dust and that are relativly easy to fit? Can anyone tell me if there is a material that allows air to flow but at the same time retards/ stops water?