Hmm...there's not much else to add. It's a standard 75 gallon AGA tank, with glass versa tops. The foundation is a false bottom made with 1 1/2" pieces of PVC, with plastic lighting eggcrate over them. The back wall has 8 bathroom suction cups (the ones that you stick on, then pull the hook down to seal) siliconed to it, which supports the vertical eggcrate. I'll probably add more support to that by drilling through the lip in the rim that supports the glass, and cable-tying it to the frame of the tank. The divider in the middle is also held up by cable ties through the center brace of the tank. The shelf is just eggcrate resting on 4 PVC posts that are siliconed to the bottom of the tank. A fifth post will be added to the middle, as well.
Lighting is provided by 2 Coralife 48" 2x 65W, 6700K power compact fluorescent Aqualight fixtures, for a total of 260W of lighting. The right side of the tank also now has a layer of window screening under the lights, to provide some shading for the lower light orchids. Circulation is done with 2x 3.125" Coralife Aqualight cooling fans, hooked up to a ZooMed rheostat which is kept on the lowest setting. Temperature is normally around 70F at night, and 72-73F during the day. For some reason, my humidity probe is not working, so I don't have a humidity reading yet.
If there's anything else, just ask. Again, thanks for the comments, everyone!