I made some particles in Motion to experiment with in Max. I think working in Motion is the way to go for my video content, especially because I can export the videos with a transparent background. I would like to start controlling these videos with motion sensors (looking back to that post about the Parallax sensor). I foresee it working something like this:
Have different groups of video clips that are attached to different motion sensors. When you trigger one of the sensors, it picks a video randomly from the bank of videos assigned to it and plays it. Once the logistics of this are figured out, I can delve into the task of working with the mirror, and also (though this may be far fetched) getting the videos to follow your motion.