ManyCam

Have Cam will travel :)
ManyCam - Home - webcam graphics plus use your webcam with multiple programs simultaneously!: "What is Manycam?

— Use your webcam with multiple programs simultaneously.
— Add text to your webcam video window with any application.
— Add cool animations in your video window.
— Show your local day and date in your video window.
— Add live CGI graphics like fire and water effects, make it appear as if it is snowing inside your house."
So who's up for a conference?