you can grow with cfl's. just use 2 or 3 100 watt equivalent bulbs per plant. just add up the lumens. you need at least 6000 lumen per plant. a 100 watt cfl has 1600 lumen, so 3 of them over one plant gives you 4800 lumen. you wont grow pro buds with it, but it will work! I got 2oz from a few plants under 14 cfl's.Well, there goes that dream - simply don't have the money. All I do have in relation to lighting is a 2.5sq ft flourescent tube (quad-capacity) fixture and four 2ft, 20w (white) flourescent tubes.
From what I've read, that would only be useful for the germination/nursery stage (barely).
http://htgsupply.com/viewproduct.asp?productID=45693
just buy one of these and a bulb. it comes with instructions, so it's not hard to wire it. I used a piece of 10 inch stove pipe for a reflector. bend it into a bat-wing shape, spray paint it flat white, and mount the light socket on it, and hang on chains. 400 watt hps for under $100.