Okay..im trying to gather all my needed supplies to get my grow started..im building a large grow box that will be about 2 feet wide, 4 foot long, and 7 foot tall...i have a 400 watt hps/mh light with a cool tube reflector...to cool my light i have a 6'' 160cfm inline fan...for air flow in the room i have an oscilating fan and for ventilation i have a couple computer fans for my output..... i plan on fitting about 6 plants in this grow space...any advice from anyone on how this sounds??