Mike-
While I applaud the fact that you don't want to feel enslaved to a soda company, I would take whatever signage they will give you. The simple fact is: Signage helps tremendously in our business. If they will give you back lit translates of popcorn and a pepsi, or hot dog and a pepsi, or nachos and a pepsi, that is the best advertising you could do. If they will give you a back lit menu board that is attractive, that will help with your impressions to the customers as well. Besides, if you sell coke and pepsi, and you put up a pepsi board, the coke guy will give you a bigger and better thing with coke on it. Take what they'll give you and use what you want to use. Signage is everything.