Well, i'm currently working on some objects like lab-chairs, small machines, wall monitors, computer rigs, detailed lab tables, liquid containment machines w/ cables and junk, etc.
I'll send you the props as soon as i complete them.
Another note, a neat affect that adds depth to an area is a reflective floor with the plants around the edge. Take the temple-like room of Natural Victory. Also, for great ambiance, make sure that some but not all of the machinery is still functioning. This is good premise for puzzle-scenarios, like you need to turn on the power to this in order to do that. If you already have stuff like this, than i can't wait to play it.
For the props, is this mod supporting model transparency? I can make models with transparency, but i can't test them properly.