When browsing the forum boards I stumbled across this gem:
http://forum.thegamecreators.com/?m=forum_view&t=63428&b=5
There is a downloadable dll you can use to catch your webcam and display it in DBP. (posted by Jukuma in 2005. Thank you!) I installed an old cam and gave it a try: I had the example files running in a minute. Well, five.
As I had used PLAY ANIMATION TO IMAGE to generate video animated textures for 3D objects, I wonder whether it is possible to have a live video stream onto an image?
Looking forward to your ideas