very pretty babies!

fluoros are a good start. somewhere around this site it talk about amount of light per square foot of grow. I aim for 20-30 watts per square foot for vegging with fluoros.

in flower I aim for 35-45w psf for fluoros. and currently run 500w in 12sf or 42 w per sq ft

I run 4 4' T5's (216w) in a 4x2 closet (8sf)

216 div by 8 = 27watts per sqare foot.