(View the complete set of slides.)
All slides were made either with Beamer+PGF/TikZ or Keynote. The fonts are typically free fonts picked up from the internet (the Hand of Sean, for instance, is my most recent favorite for creating the feel of a scribble without being illegible). When using LaTeX, I prefer to compile the math with Euler fonts. A pity I haven't worked that out with Keynote yet.
All my slides are on Slideshare. Depending on your internet connection, the slides can take some time to load. If you follow through to slideshare, you can download the slides (all of them are PDF files) for offline viewing. It is recommended that you view the slides in full screen mode. Notes to accompany the slides are coming soon - hopefully :)