I've watched one movie with my 950 sitting directly on top of a 770 (yes, I know it's a NO NO). When I was over I was surprised how warm/hot they had gotten.

The new entertainment center will be finished next week will have solid shelves between each componant to make sure the heated air from one does not feed into the bottom of another. Other than that I'm hoping that the doors open on the front and several large wiring/vent holes in the back will be enough. If anybody thinks I need to install a pair of turbo diesel cooling fans let me know. It's still not too late to add them.