You might want to try a 24" 150w Sunpod with doulble ended Phoenix 14k bulbs. You'll want to hang any MH fixture atleast 12" above the waterline or you'll toast your lps.
I believe there is also the Outwr Orbit fixtures that come with 1 or 2 MH bulbs with T5's.
I currently have a 40 Breeder and tried a sunpod just 5 inches above the water line. All i can say is the water temps spiked HIGH. I will never run MH on such a shallow aquarium again. This fixture was off my BC29 gallon.
If cost is an issue, you will be purchasing new MH Bulbs every 9-12 months.
I currently have the Kessil a350 on my 40 Breeder hanging about 12" above the waterline. The coverage is pretty decent. You can checkout my build thread to see pictures.
Also Marineandreef is selling a Kessil a350/a350w for $360 with free shipping. This price includes a $40 saving with the 10% coupon, no tax if you are located outside of Arizona and free shipping. This has got to be over $100 in total savings.
Coupon code : Augustus10
Or you can try Reefbreeders Led fixtures for $200-$300. Some fixtures are made of 3w Cree or Bridgelux LED's.
Search for the user ReefBreeder in Reef2Reef.