If you haven't tried any of Steve Raichlen's books, try "How to Grill" or "BBQ USA" as a starter - it will seriously up your grilling/smoking/bbqing game!
Thanks for the info on the books, going to have Ernestina start hunting for them. She finds alot of books on Half Price Books, photography book I wanted was 30 bucks everyplace I looked, she got it from Half Price for ten bucks..