After this, I felt I had inkling of what the language was about. Still not sure how I would write a large chunk of code with it, but it's good to know what's going on. He's got some more videos which I will try to come back to, but at this point I want to move on to apply some of this stuff.
A good introduction to those libraries is Peepcode's Prototype video. It costs money, but it's certainly worth it.