On the subject of learning SC2, I highly recommend watching day9 dailies, especially Newbie Tuedays on YouTube.

There are tons of them, but few stood out for me:
Ep 285
http://www.youtube.com/user/day9tv#p.../0/6ks4JVQarLk
and the follow up Ep 289
http://www.youtube.com/watch?v=n2tSq6E3KPs

Each episode is about an hour long, so make sure you have the cap and a cup of coffee (or 2).

This could probably be the best thing if you want to learn the inner workings of SC2.
http://www.youtube.com/results?searc...e+tuesday&aq=f