Yes, I'm obviously still on a roll with posts.
QueryTracker has an excellent post about pitch lines this morning. In addition, an older post on Lady Glamis' blog about layers led me to this site which gave one of the best pieces of advice ever about the pitch sentence: read the one-line blurgs on the New York Times Bestseller list to learn how to do this. Now, if the link doesn't work, just Google "New York Times Bestseller List". Then, click on the book showing and it will take you to the one line blurbs for the current bestsellers. Woo-hoo!