PLEASE HELP ASAP! I WANT TO GO TO THE STORE TOMORROW!

I don't think you need an intake fan.
Cut intake holes about 3" in diameter.
Use an oscilating fan or desk fan inside the box to keep the air circulating.

ha the guy at the grow store said the same thing but i refused to believe him haa- ill take ur guys' word for it.. how many cfms should the oscilating fans be? does it matter? i have already cut one intake hole- about a 3inch by 3inch square- would i need more then that?

i really want to make sure my first grow goes smooth
thanks again for all the help guys

The cfm of the oscilating fan doesn't matter, it's only gotta help the exhaust, just evens the temps and prevents any hot spots that might occur without one and provide a little breeze to help with stem strengthening.

My intake is the same size as my exhaust and for most of the time thats enough, however, if it gets very hot i open up another vent that allows more air circulation and drops temps a couple of degrees. So it's better to have your passive intake twice the size of your exhaust for maximum air flow or two intakes the same size as your exhaust, ideally from opposite sides of the cab for more even air circulation.

With an extraction fan you want to move the volume of air in the box 5 times a minute.
190 CFM (cubic feet/minute) will suffice.

As for the passive intake, run 2 of the 3" holes that you have, one in each of the bottom corners. Just my suggestion..

thanks for the advice, so i already have one three inch hole in the bottom right corner, ill put another in the bottom left.. but in fact now that im thinking about it i might have to scrap this whole closet and redo it because the reflector i bought just fits and it does not have a socket so i have to buy a seperate socket and that might make it to big for the closet.. damn!