I'm looking for a cheap source for fans to cool my canopy. I'm thinking I have a couple of old computer cases lying around and thought I might use the power supply and a pair of case cooling fans (12VDC). Has anyone tried this and/or does is anyone have sugggestions, concerns, or other advice? Not sure the fans will pull enough airflow to make much of a difference. Also considering getting a pair of quality 120VAC fans from Radio Shack but those run $25 a pop so I figured the old computer fan option was worth a shot. Mabye someone knows where to located some cheap AC fans from old electronic equipment??? Open to suggestions! Thanks.