it is a bit of a "have you seen" .... segment
Have you seen the Top 100 tools for learning website. How many are you familiar with?

I am often asked about how I download and save Youtube videos into my ilife as above. I used to use a great program called Cosmopod , however this is Mac specific, and I have had trouble with it lately, so try this site 100 Vixy.net. It is free and so far, works fine. You can choose whether to save videos as Mov files or Macs, AVI for Windows, MP4 for ipods or 3GP for phones.
If you are into making movies and concerned about copyright and the kids with their music, here are some sites that provide free music and sound affects (thanks to Michelle at Coburg Senior High for these)
incompetech
free play music
for free sounds
partners in rhyme