air circulation question

How big an exhaust fan do I need for a 35 cubic foot closet in terms of CFM? Is 80 CFM too little? I can get a 250 CFM for only 10$ more but I'm afraid it'll suck out all the humidity too. I'm gonna be using a 200 watt CFL and a bunch of low watt CFL's so I dont think I should be too worried about heat but I still want good air circulation in there.

Thanks!

If your room is only 35 cube ft that is small. CFM means cubic ft per min. 250 cfm will suck out and replace the air in 250 cube room per min. get it. at least i think that is right