I had been wanting to do this for over a week. cause the dust build up in my computer was getting pretty thick. We have an older house, and when the heater is turned on ( it was just recently turned on, like a month ago, due to cold weather ) Alot more dust gets in our house. So last night i went to my local Computer store, And bought a single can of Dry air. so i blow out the heatsink the best i could ( while the fan was still on it, i was to lazy to take it off ) And i dusted everything else out. Like the PSU. My Idle and Load temps both Dropped like 3*C!. Which is a pretty nice drop in temps, concidering all i did was remove alot of the dust. I still need to take the fan off the HS. and get any of the bigger peices of dust out of there. but i would like to say, i'm pretty happy in that temp drop. Shows you how well Dust Insulates, and Lower's the CFM of Fans. Just something i wanted to tell to people. Regular Maintenance, thats all thats needed.