Pridefloat might interest GLBT in the Midwest, especially if you're not making Pennsic. It's an annual canoe float/camping trip near Lebanon, MO (I-44, close to Springfield) on July 15-18, 2011.
Price ($35/person) seems high for the area until you factor in the camping--then it's about right.
This year the theme is Roman Holiday. Lots of pictures from previous years at
Some of them are surprising for this part of the country (those folks "must ...