Here’s a short (~4min) video that highlights the very useful trick of importing materials from one of your courses to another in Moodle 1.9; specifically quizzes and exams. The video was created by Erica Vail of Baptist Bible College and Seminary (@BBCS_eLearning | http://bbc.edu).
Direct video link: http://www.youtube.com/watch?v=xQStUOfDe5w
In addition you can check out their great-looking Moodle site and their other Moodle videos by @BBCS_eLearning on Youtube: http://www.youtube.com/user/BBCSeLearning