These pictures don't really show it off to best advantage, sadly. It's very large, and very heavy. It's well into the upper limits of my comfortable lifting threshhold..
The two 500W PSU's connect into some kind of sharing box. If you turn off or unplug either, the machine keeps working (but the sharing box beeps loudly). They're not hot-swappable, but presumably this is designed to give you time to shut the machine down gracefully and replace the faulty PSU if one fails. That motherboard is a normal sized Socket7 AT motherboard. This gives you a good idea of the internal size of this thing. :) Note the guides for full-length cards..
Oddly, the slots point up towards the top of the case. The keyboard connector etc is here. All cables come out the top of the case, are collected under the removable hood and feed out the back.
This case is just begging to be modded. I've started a forum thread for your suggestions, share your ideas here!