I'm about to begin construction on my new home studio, which is basically a 9x14x20 room on the second floor of our home. To warm up for the big project, I sat down and designed an isolation box in 3D to get my feet wet. It's something I'll need in the new studio, and I thought it'd be fun to do it in 3D as opposed to sketching it on paper like I usually do. Here are a few images:

(Sorry, my server's been having problems. If you can't see the images, download them from here instead:
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The idea of course is to keep all the computers/external hard drives quiet, while still keep them well ventilated so they don't overheat. I'll be lining the interior of the isolation box with acoustic foam or fiberglass/rockwool, although it's not shown in the images. The front and back walls will be hinged for easy access, and will have a tight seal when closed/locked.
Let me know if this design works or not. I'm pretty new to this stuff, although I've read 3 really good books on studio construction/acoustic treatment already and keep them nearby for reference (books by Rod Gervais, Jeff Cooper, and Mitch Gallagher).