Bro, with like 6000w HIDs going and needing more lights, I've actually been shopping cfls recently. They can do some good work for you. Low heat and good spread at e right wattages. Hopefully u can benefit from my research, this is what I was thinking as the best deal I could find In Optimal color spectrum, price per watt for cfl. I'll get the link but it's n 1000bulbs
.com like $22 for 105w (that's true watts) 6500k color spectrum optimal for veg. If I'm not mistaken ita the smaller socket too rather than the mogul if that makes a difference. Anyhow the sockets are like $2 on the same sight. I've seen these equivalent bulbs at the hydro shop about $50. They burn my eyeballs to look at.
Here's that link, even pricing cheaper cfls, I couldn't really find anything to match the wattage for the money. Plus it's even got a better color spectrum than the metal halides that are draining my bank account. I've been thinking of switching my veg to these, I feel like I'm liking these better than even t5s at the moment.
http://www.1000bulbs.com/product/62837/FC105-FEIIIB10565.html
Please excuse the typos, editing on the iPad is annoying.