This tutorial video is 90 minutes long but covers the vast majority of features and tools that you’ll encounter in Moodle 2.3 as an editing teacher.  From the configuration of your course header to posting lectures and infomration to managing forums and creating quizzes it covers it all.  The video is specific to Cairn University but the course and tool configuration will be familiar to most Moodle users.  Check out this video and more at http://www.youtube.com/user/skaceli/videos?query=moodle