For capturing video, I have used "Bulent's Screen Recorder".
For capturing a pic, here is a handy way if you have office, that does not require installing new software:
- Start MS PowerPoint and create a blank show.
- Click on the Yahoo Webcam window of your subject.
- Capture the window to your "keyboard buffer" (CTRL-Print Screen) (CTRL-C may also work)
- Select the PowerPoint screen, and "paste" into the page. (CTRL-V).
- Repeat as you like.
- Save your PowerPoint show.