I am trying to efficiently cool a room that will be mostly full of servers and a few LCD screens and office equipment. There's an A/C vent in the room, but in order to really cool the room, the A/C will have to be on 24/7 and even then that won't be enough cooling. I've decided we should bring in outside air, but the problem lies now that the air outside where I'm located reaches 110-120 degrees from May-September. Basically, we're trying to figure out a cost effective (low power) way to cool air coming in from the outside. Any advice? Maybe a swamp cooler?