Mac Soundproofing

I have lost the bookmark for a company that manufactures a soundproof enclosure that will accomodate a G4. It came in about 3 different wood treatments and had a wheeled dolly option. It basically had a door that would open so you could put the CPU in with a cable pass-thru out the back. It also had internal variable speed fans. It was meant to contain the computer noise in a small project studio. Anyone have a lead on this?
Thanks.