I don't know if the T5's will help you or not, but I would like to suggest a different MH bulb than the 10k or the 14k.
I recently bought a pair of PFO's new 13k bulbs, to replace my 400w ushios.
At first I didn't like the 13k's because they reminded me of my Radiums, only brighter. They burned VERY blue for the first week. Now after almost 3 weeks, I'm very pleased with these bulbs. The 13k's are white with a slight touch of blue. I'm running them off of a
PFO dual 400w
HQI ballast.
I also bought a 175w 13k to replace my 175w ushio. It looks really nice too, still blue but I have only ran it for a couple of hours. We'll see how it looks in a week. This is ran off a standard PFO 175w ballast.
If you can, try to take a look at a LFS tank or another reefers tank with these bulbs on it. I wouldn't have bought these bulbs without seeing them fired up over a tank.
HTH