While day dreaming what my own custom built pinball machine would look like I discovered this "Triggerable Digital Video Player".
It works a lot like the MP3 Trigger that Betelgeuse used in his Ghost Busters pin only with video clips.
It can play 8 videos with sound, 1 background looping video and 7 triggerable videos.
http://www.youtube.com/watch?feature=player_embedded&v=yF_4QloJlVs
I thought some of you may be interested in it for your projects.
Available at:
http://www.frightprops.com/video-visual-effects/digital-video-players/triggerable-digital-video-player.html