i have a chenming 602 and i keep it in a room where a dog goes and i have shaggy carpet so as you can imagine my pc gets pretty dusty and since i just spent $1100 i want to keep it in tip top shape my freind has the praetron or w/e and the filters seemed to work well on there i want http://www.nexfan.com/80almefanfi.html these but im not sure if the ring of aluminum around them will block my part of my other 80mm http://www.virtual-hideout.net...enming_602/Image10.JPG because as you can see from the pic the fans are very close together plz give me your suggestions