I think I found what your looking at. is this it?
And as far as how many plants my suggestion is a few. I wouldnt go crazy with filling up any BIG spaces, but it could grow you a few decent size babies, just not any monsters.
The thing i've learned about cfl's are they need to be confined to small spaces unless thier in a room for side lighting or just to add a little extra.I think, well actually i know thier are some cfl experts on 420. I even think theres a thread about people who grow just with cfl's.
Butcher, thanks for the tips. I was thinking along the same lines as far as a small confined space (3x3 about 5 feet tall). I have the whole inside covered with aluminum foil (including the ceiling which is probably 12'' above the light) do you think those reflector dealies are really that beneficial or should i stick with with just the foil up there?