first grow room set up. im building a grow room in a spare bed room 10x12. im using a 1000w air cooled hps. i need to cool the light and vent the room. how do i do this? do i need to get 2 inline blower fans. or can i make do with 1. im thinking i need 1 to cool the light and 1 to exhaust the room. how is everyone doing the job with a similar set up?