I've always wanted to build a "case" similar to that design. They always beat me to it!!!!
Antec gave us a sneak peek at an early prototype most controversial case design yet: the Skeleton. It's a totally open air case design, your motherboard is mostly exposed and sits on the upper level of the "case" while below it you have room for a power supply, optical drive and hard drive. The entire thing is cooled by a slow spinning 250mm fan and there's enough room to passively cool your CPU with a good heatsink.
Availability will be around September of this year and pricing has yet to be determined. What you see in the gallery is a very early prototype, the final product will be made out of better materials and have some minor changes to allow for things like larger video cards.