Hey Allen (et all)
I just finished watching your Text Manipulation screencast and noticed you were using the ^+cmd+T menu to show us the key bindings for specific commands. As an alternative to keeping this menu open, might I suggest having KeyCastr (http://stephendeken.net/software/keycastr/) running in the background so that we can see your keyboard shortcuts as you type them. It blinks up a smoke-bezelled growl-like notification of the keyboard shortcuts you typed; might be more handier than having to hit the menu items to show us what you did on the keyboard.
Just a thought, === ~Adam