The one you have there is perfect, you can veg under CFLs. Use the daylight or 6500k color temp bulbs, or something close to that. Once it gets a little bit larger you'll want to use a couple more of those or you could get a T5 flourescent tube system. Then when moving on to flowering with 12/12 lighting you should get a HPS bulb/ballast. Do a little research and pick a size that fits your grow based on number of plants, ventilation, and space.