thanks for the replies
i think i've decided to cut a hole in the floor to use as intake, it will draw air in from the basement (which is cold but doesn't fluctuate as much as outside air) and that way i dont have a piece of ductwork running from an a/c into a closet.
if i get that thing that disrupt86 linked me to than i think my problems will be solved.
by the way i plugged back in my 250watter for the time being.