I hear you on the trip. I make a lot of 'plans' in my head that don't actualize. So how fabulous that you are really doing it! I am sure you will have loads to choose from on the 4th of July, what a fun day to travel! St. Louis always had a great celebration, Harrier jets hovering over the river, cool stuff.
Jealous Michelle gets to visit again. I can't find any conventions in your area that my school would pay for me to go to, but I will keep working on it!