I had the same goal for pulling my CAAD9-5 I'm in the middle of paying off to charity rides. I love my commuter and its geared well for hauling. I could carry my extra water, food, jerseys etc in the panniers and have the other bike in the back.
I've seriously contemplated a trailer so I could have my son with me while the wife drives the rest of the crew there.
Definitely made me start thinking though.