Here is yet another capture program for capturing online video streams “Web Video Cap” (eg. for youtube etc etc).
Pros; Easy operations, it will capture everything in the background, its from our friends at www.nirsoft.net whom usually makes excellent tools.
Cons; Unless you stop it/configure it, it will capture EVERYTHING/ANYTIME.
As with most other capture products you need to install WinPcap (a resident background driver) so nothing new there.
Download Web Video Capture here; http://www.nirsoft.net/utils/web_video_capture.html
Read much more here; http://www.ghacks.net/2010/04/02/download-online-videos-with-web-video-cap/