I am looking into creating a simple "announcements" screen for the narthex of my church. It would basically be a TV (or projection screen) that would display our weekly announcements and maybe a short video. To simplify the situation, I was hoping that a Mac Mini running Keynote supported video within the presentation. THat way I wouldnt have to switch between a DVD player and the computer. DOes Keynote support this function? If so, is it any good?