Hey - I work for a company that brings authors to speak to readers based on sales. It's like the groupon model. If x number of people agree to buy the book, the author will come speak. This might help get people into the store. Incidentally, we're having an event in New York next month featuring a book about hacking! Anyway, we're called Togather and you can find us on the internet. You can email me tom (at) togather (dot) com if you have any questions. GOOD LUCK!