Some of my 8.012 Physics I (Classical Mechanics) lectures are now avaiable at MIT TechTV in the 8.012 collection (http://techtv.mit.edu/collections/8012).  I shot these with a tripod and fixed camera from the back of the room, so the sound and video resolution is not great, and there appear to be some weird pauses in a few of the videos (lame “update” to iMovie), but nonetheless you might get something out of them (I sure hope my students did!).