The date has been finalized for Indiana. I'll be appearing in Indianapolis on Sunday, October 26 (2008), at 2pm, in the IUPUI Student Center CE Room A (4th floor), 420 University Boulevard (Indianapolis, Indiana). My talk will be on "Why Naturalism? Six Reasons We Need a Well-Thought Worldview," which will be based on a talk I gave for Atheists and Other Freethinkers in Sacramento that went over really well many years ago. The gist of it is that all the questions that (when answered) comprise a worldview, directly matter to everyone in ways they might not have realized (especially in politics, but even in everyday life), and once we understand why naturalism is the most probable worldview (given current evidence), consequences follow in every area of our life (even in how we vote). Though this draws on my book Sense and Goodness without God, the material is new. I will be selling and signing copies of the book as well.
NOTE: Entry to the event will cost $10.00 per person (or $15 per family), although Friends of the Center get in free (show membership card), as do all Students (show valid student ID). A reception will also be held after the event at the Center for Inquiry Indiana (350 Canal Walk, Suite A, Indianapolis), but reservations for the reception must be made a week in advance with a payment of $10.00 per person ($5.00 for children 5-12, younger children free). There will be enough food for a light evening meal.
P.S. I'll give similar details for the MSU event when I know them, but I can say this much: I will be appearing on the MSU campus in Springfield, Missouri, on the weekend of October 11 & 12 (the exact day is not finalized yet).