Last night I finally found a solution for cheap webcams at least. On the mac store I found "Webcam settings" for $8. It works with most Logitech cameras. Went to Radio Shack and picked up a "Logitech HD c270" camera ($21, 1280x720, 30fps max) and the app worked fine. I was able to change the gain and exposure time (which changed the framerate) in-camera just fine. So along with software "Debut" ($40, it can also do screen capture) for capture it seems like a complete solution. Building the camera now (was using my DSL camera in video mode previously) Tried "Webcam settings" with an old GE web