I dunno what's "best" but this might be a good starting point: <A HREF="http://www.exploits.org/v4l/" target="_new">http://www.exploits.org/v4l/</A>
<A HREF="http://www.yolinux.com/TUTORIALS/LinuxTutorialVideo.html" target="_new">http://www.yolinux.com/TUTORIALS/LinuxTutorialVideo.html</A>
<i>Knock Knock, Neo</i>