Did you ever hook this thing up? I have almost exactly the same fan, I plugged it into a 9v AC adapter and it was blowing hard and loud, not exactly what I want.
If you did end up using it were you able to control the fan speed and what did you use for the power to it?
So i am making one of these box fan coolers, however when i went to get the tube up into the tower, i cannot fit a 1'' tube. Would this method still be effective using say 1/2'' or 3/4'' tubing up into the tower?? Or should i go witht the copper cooling method i have seen wehre they put copper insulated up in the tower and run beer line through????