Kenny,
 
Regarding the Groove3 videos.  Should you decide to get them I suggest purchasing the download for multiple reasons.  You can store the files on your computer so you'll always have them in case Groove3 ever decides to no longer offer them.  You access the videos anytime including after the thirty day access pass has expired.  They are a quick and easy way to to remind yourself about a feature, and how it works, when you want to use a feature you don't often use.  Last, the videos will be available as long as you continue to use MC6.
 
For me, the videos greatly enhance the value of MC6.