that's a good start, i'm also in an Explorer Post, as far as the training, that's a pretty good start. as for guest speakers, YES!!!!! they are a perfect idea, i remember our first guest speaker was Mike Perry, a FF/ EMT-P/ RN from New Auburn WI. you may be able to get him, www.sneezingcow.com is his web address, so you can learn more about him. also, you could try like haz-mat teams, even the medical examiner/ coroner would be a good idea. a great idea would be getting an EMT-B instructor from your local tech college or whoever teaches EMT-B level in you area to come and speak, kind of give your post an idea of what EMT class is like. that's all i have for suggestions.
scott