erica62371 has a great plan to break up the day, and avoid the heat and longest lines. I'd definately go with that! Only drawback would be if you wanted to go with Starlight (after 5pm) tickets, but I've found that they aren't such a great deal, really - just a few dollars off but you miss 7 hours of the park (more than 1/2).
Anyone local know if you can buy tickets at Meijer or someplace like that? But it will definately help out to have the tickets early so you don't have to wait for them that morning.
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PO!NT OF VIEW - A Different Look at Roller Coasters
http://www.crosswinds.net/~justmayntz/thrills/