>I'm wondering if a program such as this exists: To any other program, it looks like a web/video cam, but what it does - instead of using a camera - is grab the screen video and feed it back to whatever program is consuming the feed. So it would be like pointing a web cam at your screen, but it would be done internally via software, thereby accomplishing the same thing without a camera. Hope that explains it well enough. Has anyone seen a program like this?

See Camtasia Studio (commercial) at http://www.techsmith.com/camtasia.asp