Yes, mr. revolution is right.
You guys have to remember that when you use HID lighting, your growing in a certain style, i.e. strong light, further from the plant(s). Other light sources work too, you just have to use them differently to maximize what they give you. My very first grow was with 16 forty-two watt cfls and yielded 2 zips off of each plant. Why did I use 16 of those instead of buying an HID? Simple--I could barely afford the bulbs buying them a few at a time. If I was forced to buy an HID, I'd never have been able to grow at all. Let alone all the necessary cooling that you have to run with HID.
I'm not trying to piss in anyone's Wheaties here, just trying to spread info through experience, is all.