Nothing but speakers in the listening room?

I'm negotiating to build a new house. Thus I have the opportunity to build a new listening/theater room. I have a few ideas to put forward and see what you think.
1. I'm thinking of designing the new room with a small room directly behind the main speakers to house all the electronics. With the advent of the iPad, wifi, and some help from Crestron, I can control the volume of my preamp, access the music server, contol my PWD II, contol the projector, and even the P-10. The beams in the ceiling will be open and satellite speaker wiring , projector wiring, etc will all be available in the ceiling. The wall behind the speakers where the equipment will be housed will have PVC pipe for all cables and powercords to pass through as needed. The equipment foo will have it's own satellite electrical box to easily provide all the electrical "home runs" to the electronics. I'm placing almost all the equipment in the small room so it cannot vibrate need able elevators or interfer with the imaging and depth of the system.

I will allow a couple of dedicated outlets on the side walls for the turntable, CD player, and DVD player as it would be inconvenient to have to leave the room to access these pieces of equipment.

I'm also considering the room itself to be constructed according to the Cardas Golden Trapagon model. Has anyone built one of these? Did it sound as good as Cardas claiims? I'm also considering building bass traps into the corners so I wouldn't have this clutter either.

I guess one downside would be not seeing all the equipment and pretty glowing lights?
One would focus on my Legacy Helix speakers, Legacy Extreme Subs, the center channel will be located behind the video screen (maybe placed so it is actually placed inside the equipment room facing outward) abpnd of course during movies the main screen itself.

So what do you think?