Well if your going tomorrow you will prolly miss seeing Scott Olsen pitch by a day, but I think you will see Josh Johnson. He isn't a big prospect by any means right now, but he is a nice one to keep an eye on. Some see him as a future Carl Pavano type, though I'm not sure if they expect the same type of break out like Pavano had last year. The only other one to watch would probably be the SS, Robert Andino.
You named pretty much the only ones worth interest on the Biscuits. There is one though named Cortez at 2B, who has been hitting over .450 for the year so far. Nobody big, but just thought I'd bring him up.
Oh, don't know if you can take pictures or not .... but if you can (especially on Young/Dukes) I'd appreaciate it.