While an interesting problem I don't see any ready to use system. That is you list some software yet we know HD content is problematic even for those that have HD editing gear and software.
Maybe 3 laptops with Web cams are the right answer here.
Hi. I am a PhD student running an experiment on communicative gesture. I need a camcorder to videotape my participants during a story telling task. The group will consist of three people. What I need is good quality image and sound that will easily be manipulated for the experimental analysis (I might use Praat and ANVIL annotation systems). I also need 3 external microphones and a tripod. I am on a student budget!
Can you please help me chose a good camera?