Heres pics of my setup from my apartment deck observatory.
I'm configured into galaxy hunting mode for now. The details:
Scope: Celestron C5 (their Nexstar SE model)
Mount: Celestron CGEM DX on custom pier
Main Camera: Orion Starshoot 3 Mono with Starshoot 3 7 slot filter wheel. No focal reduction (shootin at native 1250mm F/L)
Guide Camera: Meade DSI 2 color on Orion Magnificent Mini scope
E-Finder/Wide field camera: Canon Digital Rebel T3 with 75-200mm telephoto lens.
Dew straps on every piece of glass, kendrick 4 slot 2 channel controller (shown in the image).
JMI motor focuser for SCT. It's an older style and probably the only style that fits on that scope.
Lots of zip-ties. These ones are reusable in case I want to reconfigure the scope.
I've retouched the collimation at least 4 times on this one and gotten better results each time. It's a true galaxy hunter. I have to tighten up the polar alignment so that it's just perfect and that's the fun part about my deck observatory. The deck is a cantilevered deck. This means the position of objects inside the house affects my polar alignment. The box locks up and so far has survived the winter and a few good rain sessions keeping everything inside perfectly dry.
It only looks like a mess because of the wires on the floor to the right. I pull those in through the door so I can control the whole thing from my TV.