I'm kinda nervous as I've never given a three-hour tutorial before - at uni I found the occasional forty-five minute seminar bad enough - but I'm hoping that I can get everything I want to cover into an interesting format.
Still no news though on whether I'll be at Rails Underground next month in London. I'd really like to get on the bill there as it's a chance to do an updated version of the Ruby Plumber's Guide and would be yet more useful experience. Fingers crossed that happens.