I just delivered my OSCON 2009 presentation "Taming your data: Practical Data Integration Solutions with Kettle".
I think it went pretty well, and I got good responses from the audience. I did have much more material than time, and I probably should have proposed to do a tutorial instead. Maybe next year :)
Anyway, you can find the presentation and the examples on the OSCON 2009 website. The slides are available in pdf format. There's also a zip file that contains the presentation as well as the kettle sample transformations and jobs.