Unfortunately, the ballast is what makes the bulb.
You can however buy double strip lights fairly cheap in the US. Petsmart has them for a fairly light price tag. 35-40$ and it comes with 2 suitable bulbs.
As for plants, Java Fern, Anubias, Anacharis are generally good starter plants, for a better list, try http://www.plantgeek.net/
and search by light level to see a list. Some of these may be very hard to find.
120 Gal SW, 150lbs Prem. Fiji, 23Gal Sump, 2x250w 15K MH, 4x65w Actinic
3 x Halichoeres Chrysus (1 surfed), 3 x Nemateleotris magnifica, 1 x Centropyge bicolor, 11 x Scarlet Hermits, 6 x Zebra Hermits, 40 x Astrea Snails, 6 x Nassarius Snails, 3 x Cerith Snails