I just looked at your workshop- those do cover impt stuff, but they seem to be from a technology perspective, more than from a teacher's perspective. I think workshops for teachers should immediately relate to them as teachers, some of whom are really technologically challenged/threatened.
Our workshops start with an 'experience e-learning as a learner' so they can participate in a chat/forum/wiki. These may be on questions such as 'what is the difference between e-learning and active learning' or 'What good interaction experiences have you had with students in your teaching''. I give examples from courses related to their subjects or get them to talk about active learning in their topics. This can help teachers make educational connections between their courses and Moodle. We then discuss these experiences f2f in the workshop so then teachers are more ready to see what they can use for their won work.
I think your point about champions is important, Chad- their experiences in teaching can be so motivating to other teachers as they both speak the same language! And your other points are good too!