Thanks for the advice. I'm actually thinking of a do-it-yourself type of walk-in cooler. I've read about this coolbot device at this site: www.whitetailcooling.com
which you attach to your air conditioner and turn your room into an inexpensive walk-in cooler. I haven't tried it yet and I'm interested to know if anybody here has any experience or feedback about it. I have a small room which is not used often and I'm thinking if I'm not going to spend much on converting it into a walk-in cooler then I might as well turn it into one. What do you think?