Do you use any of the textbooks that now come with video instead of disembodied sound tracks for listening? Does it really make a big difference? ? Is there enough video or is it just a once a unit thing? ? Does it exploit the video so it makes a difference? ? Does it develop listening? ? Can you get the video without having to buy some annoying electronic lesson planning thing? I want to decide if it's worth bidding for money to get a course with video, or just carry on using You Tube style video stuff.