[BlackThumb]

Howdy cousin! Good luck on your first grow!
You give a weed light and food, it will grow. You give it more light and it will grow better/faster/stronger. One will be working within this defined parameter somewhere. The spread runs from LED's, Flouro's, HPS/MH, the the top end being our Sun. If your budget dictates Flouro, then Flouro it is.
You may want to spend a little more on the bulbs rather than the fixture, and get a mix of Ag. specific grow & bloom blub's if going for the entire grow cycle. Due to the lack of heat these bulbs generate, you also want to run it close/close & close, to the plant. This inherently sends some extra tending work your way as you will need to constantly raise the lights as the plant dictates. Just plan right now on a daily chore so as to take advantage of the limited lumens, and do yourself a big favor by spending some time and thought to suspending them in a fashion facilitating this goal to make it easy.
Good luck and give us some pics when you get going.