I'm helping a friend during his wedding tomorrow, he wants me to show some pic on the screen, this is fine, I'm using keynote, great. I've now been asked by the father of the bride to show a video during his speech, which will be full screen. The question is, what is the best way to do this? I mean I can switch applications in between the speeches, but then my desktop will show on the screen(just the standard Lion one), no biggie, but it will look messy. Is it best to put everything into one keynote with maybe a blank slide in between and just run that? or can I hide the output quickly? Any ideas?