Good PHP book for under $50?

[Hikaru79]

I got $50 for christmas, and naturally it's going to go towards a programming manual =P I don't have any PHP books, and although I know I can easily download one there's nothing quite like the feel of paper in your hands

I already know PHP, at a low level, and I've lots of experience with programming in general, so I'm not looking for a book that spends 300 pages discussing what variables are. Also, if the book focuses on PHP/SQL integration, so much the better. The budget is $50... any reccomendations?

PS: I checked my local Chapters store and there wasn't much =/