So I have my Air set up with a Thunderbolt Display, and the Air seems to be constantly running its fans at high RPMs while doing perfectly normal things (browsing, playing music, etc). So not watching Flash, for example. They spin anywhere from 4000-6500 RPMs (6500 is the max), keeping the Air at around 50-60 degrees C. The noise is a little annoying, but more importantly, what are the side effects of having the Air's fans constantly running and running so high? Do they wear them out quicker? Does it make the internals dustier? Etc? If anyone knows about this, would love to hear about it. Thanks.