I'd say 1 42w (or 2x23w) 5000 or 6500k CFL plus 3 42w (or 6x23w) 2700k bulbs for flower. If using 23w, then try using a Y adapter to run two off of one socket, or get those sockets that plug straight in to a 2-prong socket and put three of them in a line on a cheap 6outlet power strip. One of...