Rule of thumb for CFL's - At least, 100W (real) for 1 plant, and an additional (minimum) 50W for every extra plant. 3plants = (min) 200W. I use(d) a mixed spectrum of light, at a 3 to 1 ratio of 6500k / 3000k for veg and the other way round for flower.
I found CFL's quite good for veg, but the buds turned out a bit light compared to HPS.
Oh, use good soil, something that says something like "professional growing substrate".
Water, you need good water. I'm a recent convert to reverse osmosis water, fixed all my problems, so no more tap water for my girls.
Have fun