The other event today, Frank Gaffney's course aside, was Robert Spencer presenting:
Did Muhammad Exist?: An Inquiry into Islam's Obscure Origins
http://www.amazon.com/Did-Muhammad-Exist-Inquiry-Obscure/dp/161017061X/ref=sr_1_1?s=books&ie=UTF8&qid=1335324469&sr=1-1
I read the book, it's excellent. He shows quite an Arab scam and the Christian origins of Islam, amongst other things.