I was browsing a LCD forum, when I came across a post about auto fan speed. There is a program that will automatically adjust your fan speed to keep a certain temperature or, you can set a percentage value for fan power. It works using the PWM concept that Brians talks about in his quiet fans article. It will work on many modern mobos. It worked great on my IWILL ka266. The address is
http://www.almico.com/speedfan.php. Enjoy!