That article appears to have been written in 2004. The state of the art has moved on. The best quiet computing resource on the web is www.silentpcreview.com.

That article appears to have been written in 2004. The state of the art has moved on. The best quiet computing resource on the web is www.silentpcreview.com. They've been fanatical about noise reduction for a decade. It's not hard, using SPCR's techniques, to build a PC that is simply inaudible at any distance in any environment.