Hi all, I've been lurking for quite some time and have finally decided to jump in and start growing. I have a somewhat small space available to me, in a closet that occupies the corner of my attic. I've determined that I have enough room for a Secret Jardin DR120W Grow Tent (2'L x 4'L x 5'3"H) in which I plan to grow 4-6 plants in Fox Farms soil using SCROG method. google sketchup layout of closet w/ grow tent For lighting, I'm currently leaning towards this package from amazon which contains: * 400-watt dimmable digital electronic ballast * 1x 400-watt super hps bulb * 1x 400-watt mh bulb * 6-inch cool tube with add-on wings * Pair of Rope Ratchet * 24-hour timer I'm a bit concerned about sound & smell, so I'm thinking of the following for air filtration: * HVACQuick - S&P TD-SILENT Series Inline Fans * Can-Filter 33 - 13" Carbon Filter | Air Cleaners/Odor Control google sketchup layout of tent interior w/ filter, light & fan Does see anything obvious that I am missing here? Is this enough cooling for a 400w hps? Any help would be appreciated. Edit: Bit of a change here. I decided to go with the 600w version of the light and the td-150s (333 cfm) version of the fan.