I'm starting a PC grow. Should I go for 125w vegging, or 200w if I can afford it? The case is 27" (67cm) tall. I'm going to fit a small reflector in there and 2 small lowryder 2's. I can afford a 200w, but if it doesn't increase my yield, I could just use a 125w and thereby save power, too, right? Off related questions: Should I buy CFL's online? There was 1 site who no longer sold lights because of damage durning transit.