It's another MOOC player, but the design page of courses is pretty slick. All drag and drop with the tools always present. All the tools are the same, but the course construction process is some how deconstructed: start with a blank slate then add in elements, rearrange as necessary, organize into topics/lessons, etc.
Check out the video if you're interested, there are some really great ideas for a teacher-centric course format designed to facilitate course building.