Thanks, all, I am definitely no pro, I just take LOTS of photos and am lucky that a few turn out well! I did get a fast prime lens (35 mm) before this trip, which was better for the low light shots. (For those who might not know, a prime lens is a fixed focal length - no zoom. The advantage is that they have a larger maximum aperture, which allows for better performance in lower light. The disadvantage is that you then have to "zoom with your feet" to get the composition you want.) To get truly sharp, stunning fireworks shots, a tripod is pretty much a requirement, but I don't want to carry one of those around, so I do the best I can handheld. Take a look over on the Photo board, some of the shots there are just incredible - those people are true artitsts.
Having said that, some of the photos - in fact I think all of the Osborne lights - were taken with my small Olympus TG-1. Even "point and shoot" cameras these days have amazing capabilities. Read reviews, decide what features are important, what your budget is, and - this is vital - go to a camera store to see how different cameras feel in your hands. Are the controls comfortable to operate? Is it a size and weight that feels right in your hands?
And then take lots and lots of pics! That's the beauty of digital photography. You can experiment all you want, without worrying about the expense of film or developing.
I actually live in southern Ohio, near Dayton. I travel all over the country to take bands and choirs on trips - I love it!
Thanks again, all!