My final experiment with the chroma key or green screen effect proved the most fruitful. This 2 minute video clip was recorded straight into iMovie 09 using the built-in iSight camera on the MacBook Pro. I used an external USB mic that deliver excellent sound.
As I said in the test video, moving video from the cameras to the Mac… fire wire cables… a big hassle. Going straight into the Mac is a hell of a lot easier and the resulting video effect is superior to my previous efforts. I posted this clip to my Mobile Me account so you can see the video without the YouTube compression. Thanks for your patience while I farted around with this. The flag and sunrise (set?) bkg video has lots of potential.