UC Berkley has opened up their iTunes U course audio to the general public.
You can jump directly to the website here: "http://itunes.berkeley.edu/
Always a lover of broad survey courses, I'm currently working my way through IDS 110 Introduction to Computers.. Not for the need on an intro course, but because the syllabus indicated a lot of interesting material being covered, particularly in regard to the relationship of people to computers and computer-technology. The philo major in me eats that kind of shit up.