Ty. I'm actually will be using a 600w HPS with a digital greenhouse ballast. unfortunately i haven't been able to run any temps yet because i blew a bulb during my last run. i am a lil concerned that the temps with be high but with the ac running and this room sealed i think i'll be alright. Both of the fans in there now are exhaust so i'll prolly seal the last strip in the back and cut a backdraft vent on the bottom left side. I still have to get some weather stripping to put all areound the edges of the door. hopefully in the exhaust fans will be coverd by what would appear to be a speaker box containing a small ozone generator. ive actually also been looking into c02 injection a little bit nothing big maybe a 20oz paintball tank.