Heating/Ventilation issues

Hey all. I am running 3x 4foot parabolic reflectors with 1000w digital ballasts. As of now I need to run the ballasts at 600w because the heat from all 3 at 1000 brings the room up to 88. Way too hot IMO. So, I will be linking my grow journal here, you can check out the first post, and the last post. The first post is my basic room setup, and the last post is just an update from today about heat. Here is a video I uploaded. Basically give it a watch and tell me what you think I could do to improve my situation with heat. Thanks alot for your time, hope someone can help me. Really cant upgrade to vented hoods so I need to figure something out before flowering.

http://vimeo.com/35356343

Hello, nice grow. I would move your ballasts outside the tent for starters. Other than that you could vent the hoods just a little. Just above the bulbs at the upper/inner edges of the reflector and then install HVAC drawing air upwards past the bulbs and either venting or cooling and recirculating the hot air as necessary.

Bump! I really want to throw them into 1000w each. Any help would be great.