Thirdeye,
First, I'd suggest getting some kind of canopy or something to keep the light in the tank, not in the rest of the room.
Next, I'm suprised you think that those bulbs are too bright as I think they are much "cooler" color wise as many tubes. This past weekend, I just switched out all my 4' tubes to the Phillips "Daylight Deluxe" bulbs with 6,500 K, 84 CRI and really like the results. Obviously, it's too early to tell if the plants like them, but with a higher temp than the 4,100 K bulbs I had before, I hope the plants do even better! These new bulbs are about half as bright to my eye as the old bulbs and give a much better, cooler appearance to everything. Now I do have enclosed canopys on all my tanks, so I keep those free-flying Photons to a minimum! Also, since I have 4 bulbs on my 75 gallon tank, I do find that mixing 1 or 2 regular 'aquarium' bulbs in the mix gives a nice color also!
Bill C.