Hi all, I was just wondering if it was normal for an 24" Alu iMac to increase its "mechanical" noise ( Fans or hard drive spinning ) over time? I bought the iMac back in July 2008 ( Switcher ). When I first got it you couldn't hear it at all only if you got really close to it. Now the sound is much more prominent. I've noticed that this has happened after running a game for a month pretty much nonstop ( don't ask ). The fans are going at the same speed as before: CPU Fan: 1199-1205 Hard Drive Fan: 1199-1240 Optical: 699 Also, does anyone know if I can pay or something for Apple to clean the dust out? Thanks to all!