Dude you definately want to go with what Da1 said. You want to find the lights with the highest light output(lumens) and the least amount of heat output, which are usually CFL's(weird looking lights look kinda like mini-flourecent bulb). I would reccomend something like a 250w HPS or metal halide, but it doesnt sound like ur ready for that yet.
For your box growroom i would suggest having one or two(as many as u can fit) CFL's hanging over the top, and in all four corners of the box, u could mount regular 24 inch flourecant-lights in order to get the plants nice and bushy with light coming form all sides. Hope this info helped, Good luck.