Re:Installing stuff, handling network settings (Score 1)

download this give it exec permissions and put in in /usr/bin/ then call it from the command line thus
youtube-dl http://www.youtube.com/watch?v=whateveritis
The youtube video is saved to the current working directory that you invoked youtube-dl from (so make sure its ~ unless you want to spend ages searching for what you downloaded) in .flv format.