Down at the University of Illinois we use Rod Machado's Private Handbook. I loved it because along with the AIM/FAR's and the book CRJ pointed out, it all came together very easily. Rod is a flight instructor and wrote the book with the student in mind so it is laid out in an easy to read and understand fashion.
http://www.rodmachado.com/Product/Books/books.htm
Cheers,
Illini