Pam, I also work with 6th-8th graders, and I've done Williy Wonka and School House Rock with them, and they loved both. Willy Wonka is a classic, and has plenty of opportunities to use as many kids as possible. I think we had 40 kids in that one. School House Rock is great, and my kids' parents loved that one, since they grew up on it. Honestly, a lot of my kids were not familiar with the songs. While the show is great, the only downside is that it is written for a small cast. We had 13 in our show, but I know you could do it with more. I've also done Mulan, but with K-8th graders as a summer camp show. It is probably the hardest MTI show I have done, but it is fanatastic and the kids really like it. One thing to keep in mind is that Mulan is a boy heavy show. Mulan dresses up as a man to fight in the army for her father, but I actually had to have my whole army played by girls, because I only had two boys in the summer camp! One boy was double cast as her father and the leader of the Huns and the other was Mulan's love interest. It worked out just fine, but some of the girls were disappointed since there were not many parts written for them. If you've got a hard working group of kids that are up for a challenge, I definitely recommend Mulan. I haven't done Fame or the MTI version of Alice in Wonderland, and I don't really know much about them. Hope that helps!