I did some research on these iso boxes a year or so ago and was amazed at how many different vendors offer a sound-isolating, ventilated computer enclosure:
Noren AcoustiLock
(
http://www.norenproducts.com/acousti...iLockpage.html)
Sound Construction & Supply IsoMac
(
http://www.custom-consoles.com/isomac.html)
Raxxess IsoRaxx
(
http://www.raxxess.com/product.asp?ID=508)
Omnirax HushBox
(
http://www.omnirax.com)
Pin2 HushBox
(
http://www.pin2.com/hushbox.htm)
Rob Lonsdale Double Box
(
http://www.geocities.com/rwlonsdale/doublebox.html)
Middle Atlantic S12SDG
(
http://www.middleatlantic.com/studio...sbr.htm#s12sdg)
Silence Cases SC-1
(
http://www.silencecases.com)
I can't swear all those links still work, it was a while ago that I compiled that list.
I wound up choosing the Silence Cases SC-1 because the dimensions worked best with my existing control room. Plus it was the least expensive! Still waiting for the SC-1 to arrive (hello Elias?), but the scuttlebut is promising.