If you have not already been there, MIT's OpenCourseWare does a great job of offering materials for free to do a little self-learning. I have reviewed several courses, and although some of the lecture material is a little skimpy, you can track down the source documents for several of the readings to get to the really good stuff!

Matrix 2 just came out on DVD - of course I had to grab it! I would have to say that it will take something special in Matrix 3 to finish this series off!