2x 1000w, 9'x4' closed room SOG

hey, just finished building my tables and am getting started on my room now. It's 9x4x7.5, and has 2 4x4 tables with a 1000watt hps over each one. The strain is 100% Himalayan Gold. I'm wondering what would be the best way to ventilate this room to cool it down (its a room/tent built in a room). I was thinking either aircooling the lights and closing off the room so i can use CO2, or dont aircool the lights, and ventilate the whole room. opinions?

also how many plants could fit comfortably on a 4x4 table? i was thinking 12 to 14ish?thanks

cooltubes for your lights are prolly the best option. I think you can fit 16 plants (4x4) under one light. if you are doing things correctly you should receive 1 pound for every 1 1000watt light (so ive been told)