If you are wanting to wall mount, then your options start to get thinner. The UTMA ones are an option, though not cheap. In a way, by the time you buy a mega manly machine to drive 8 UTMA screens and the UTMA screens themselves and software, you could just about buy a set of very tiny PCs and a cat-5 KVM extender and a 7" lilluput standard touch screen and go that way.
Basically you'd be looking at like $750 for a tiny, mini-ITX PC with XP, $200'ish for the extender, and $250'ish for the Lillliput. So about $1200'ish for each set, one per room. Mount the far end of the extender in the ceiling above each one and drop the video, USB, and power cables down to the display.
Since CQC is fully networked this type of configuration doesn't make any different to it. One of the machines you'd want to have a little more manly, to serve as the overall CQC server for the whole system, plus you could mount a 15" screen off of that one if you wanted to, as a main interface in a common area, as long as you have a local screen you could switch to for local maintenance. That would give you a large resolution screen for the main interface point. You could actually distribute the CQC functions among the small machines if you wanted, and make one the main server with better hard drive, and get way with just the small machines.
The neater, optimum way to do something like this would be a blade server rack, but that would cost more. But it does get you centralized maintenance, complete reliability since they are hard wired displays, pretty reasonable price per screen, full graphical power for interfaces and exellect reponse since each room basically has their own little machine.
It's something to consider.