Ripnet-UK has posted a QuietPC QuietFeet Vibration Isolation Feet review
The idea is to dampen the audible vibrations from your computer which is passed through the feet into the surface it is sitting on. If your PC is on a plush carpet read no further as these are unlikely to help because the vibrations are well muffled anyway. But if your computer sits on a desk or a wooden floor then these vibrations can resonate like the wooden body of a stringed instrument...Read more