I'll be there drooling as well. My goal is to make it in and out with only the equipment I want to buy...but with an empty tank at the house it won't be easy.
Just take a notepad and camera. Take pics and notes of all the snakes you are interested in. Then go get some lunch or whatever and review all the pics and notes. It's better to do this someplace other than inside the show so you can think clearly and make a reasonable decision that you will be more happy with as opposed to an impulse buy...