I second,
www.campus speak.com, we currently have David Stollman here at Texas Tech, I went to and heard him speak last night on something called Fraternal Darwinism: Recruitment by the #'s. It was mainly for the recruitment team/exec officers for everyone greekwide. Tonight we are having him speak to the whole greek community, I'm not sure what his topic will be, but he is a very entertaining, and informative speaker.