Thanks for the replys Albatross/Bear. I wish I could attach a PDF of
the design to help illustrate the problem. The pressurization comment
is interesting. There is a lot of free cubic feet of air to move and 2
x 120mm fans probably are not making a dent. If that IS my problem,
(other than an addiction for audio/video) what is a good brand of
large, quiet squirrel cage blowers?