Hello Happy People!

I've been trying to decide on a lighting system for my bloom room. The area is 6'x6'x8' and daily temps range from 72-80. I intend to grow 12 Super Skunk clones since that is the legal limit in my area. I will be using a DIY RDWC system. As usual, I've been told to use HPS lighting for best results. However, heat is a concern for me and I hate the thought of all the electricity I'll need to run those things. Are CFL's a viable choice and what sort of lighting setup would I need to get the best results? So far, I've only come up with perhaps using a 4' x 6 bulb T5 fixture on a light rail. I'm a total greenhorn and any help would be greatly appreciated.

__________________
Researchers say smoking weed makes you lazy. I say smoking weed makes lazy people lazy. Besides, what's lazier than reporting shit we already know?