Processor Cooler/fan for a HTPC
To keep the sound level of our computer down you might want to consider replacing a fan based cooler with a fanless version. The danger in this is that the CPU might overheat and your computer will get damaged. Of course since we are using a low power CPU the danger would be minimized.
There are also quiet fan coolers such as the Zalman CNPS7700-Cu cooler (B0006VHVK0). Its unique design allows both maximum heat dissipation and minimum noise. The fan speed is adjustable which allows for maximum cooling during intense firefights and minimum noise while watching a DVD.
If you don’t mind the sound or will have the computer behind a cabinet the standard cooler will be plenty.