here:
http://www.youtube.com/watch?v=QdkzYolSNLE
http://www.youtube.com/watch?v=kFMdtt5HhmM
http://www.youtube.com/watch?v=V1PlDhbk5zk
http://www.youtube.com/watch?v=GE3tOaZbI6Q

parts 1-4