Wow! Good Luck! I used to have to coordinate tuesday evening speakers for one of my jobs. It was always a little difficult as some people turned out to be really great, but terrible at being a public speaker.
Only one suggestion from me, would your guild enjoy hearing form someone who coordinates the distribution of charity quilts? It certainly is not about improving technique or anything, but I think anyone who has donated would like to know more about the projects they have donated to and see some pictures....