Thanks for the comments. I'm concerned about heat too so there's a 12" box fan behind the equipment blowing directly onto the amplifiers and the door to the closet remains open all the time so no heat can build up.
Since we're in a condo with neighbors and all we tend to play things at relatively low levels more often than not and the amps don't even begin to get warm. But my wife and I are big movie fans and have a group of friends who get together for "movie night" as I'm sure many of us here do. On those nights we let the neighbors know that things may be moving around a bit. Thankfully we have the world's most easy going neighbors and a 12" thick firebreak wall between us helps too. Next Saturday's movie night feature is King Kong which we did not catch at the theater, I can hardly wait.
In a couple of weeks I'll begin the closet conversion project and the design ensures there will be plenty of space for everything to breathe and to install the rest of my stuff. I'll be keeping a photographic record of the project and will put the pics up as things progress.
mike