I think someone asked a few days ago for some advice on cutting a section out of a book. Well, lucky you, because MAKE's weekend project podcast is on just that.
http://blog.makezine.com/archive/2007/12/make_a_secret_compartment_1.html?CMP=OTC-0D6B48984890
http://blog.makezine.com/archive/2007/12/make_a_secret_compartment_1.html?CMP=OTC-0D6B48984890