nice im doing the same type almost ....use about 6-8-10 CFL's in there 6 will do but more will help later on....3 fans one exaust one intake one pointing up at the lights in the middle (lil 4 inch fans from wall mart are 7 dollars a peice) then your good to go
easy room for 12 -18 small plants in there if you 12/12 them after 10 days