Cool Tools and other Automata links:

• Check out this really useful Finate State diagram sketching tool. Very sweet, fast. Excellent for turning in readable homework diagrams! Too bad it doesn't also do PDAs and Turing machines!
• The Alan Turing Internet Scrapbook
• FA/Turing Machine simulator in Java
• Another nifty FSA applet
• Check out this cool video of a Lego Turing Machine that this guy built!