Even though this thread is a great source of info on the CFL it really isnt a tutorial on how to grow with them.
With CFL's you need to adjust the light almost daily. The reason being is that if you have the plant too close to the light, it will stay small and stocky. If you have it too far, it will suffer from elongation (which one of my plants April has, check my first CFL grow). Now if you are looking for a small stocky plant, then keep the light close; about 2 inches away. I can't see any practical reason to have a plant become elongated. Reason being is that if a plant gets too elongated it will eventually get too long and slinky and weakly topple over from the weight.
About 2-4 inches is about right.
Now it depends how many plants your growing, but for vegetative growth I would reccomend atleast 144W for a few plants. Now at the begining if your budget is low you can get away with low wattage. Example for the first week I used only 30watts. But now on the 18th day of veg I have 74watts. Lumens is also impodant. You want ATLEAST 5300 for veging, the more the better. When you begin to flower you want below that or atleast a 25% decrease.
Idk, thats about all I can think up off the top of my head that I think is impordant. The rest is really up too you I can't really tell you how to grow your garden as where everyone has there own method. But these are deffinedly key factors to keep in mind.