Does anyone know of a decent way of dampering the noise of a hard drive to a certain degree? I have seen the quietpc drive enclosures, but they're somewhat expensive and a 100% case enclosure seems a little drastic. Does anyone know of any kind of a foam material or otherwise homebrew solution to making hard drives a little more quiet? I'd be interested in hearing about any experiences that people have had in the past. (I realise the easy solution would be to either a) order a quietpc enclosure or b) get a new HD.. but I'd like to first hear of any alternatives)