While my current pursuit is attaining Master of Sport in GS, I still like to keep up with training books that come out. One that was recommended to me was Ashman Strength System (A.S.S.) Book, written by Jay Ashman.
I just finished reading and I have to say that it is a well thought out program that is simple and effective. The program is geared towards a mix of strength and aesthetics that most gym monkeys can appreciate.
Definitely check it out. You could blow $20 in far worse ways and get far less out of it than this, plus Ashman is probably one of the few bullshit artists out there in the internet fitness world and he knows his stuff.