I agree with most, but especially Diatom. There just aren't enough lumens out of a single incandescent 200W. Remember, those 4000 lumens you talk about will be divided several times before they get to the coral. To make it practical, you would need many more of these bulbs to be able to keep soft corals, but so many would overheat any system even with an open-back canopy.
Sorry, I feel you pain. Expensive metal halide is the best for now. Perhaps though this will change with continued advances in fluorescent technology.
sam