Dampen Vibration One thing we did at Carbon Studios in Birmingham is to put the computer on some neoprene pads which helps reduce the vibration of the machine on the surface it sits on. 5mm stuff did the trick, old mouse pads can sufffice. Also a bit of foam to the side and rear surfaces the machine is next to to absorb the reflective machine noise, helps. Leave air gaps though. Doesn't need to be too thick as the frequencies arn't that low. http://www.carbon-studios.com