Check out the gamblrers bookstore:
www.gamblersbookstore.com
For football, I recommend both of O'Neills books, as well as Dan Gordon's; Stanford Wong is OK, JR Miller has a desent book as does Feist/Sturgeon.
For stats, Al O'Donnell's "Pointspread Playbook is about the best there is for the NFL, and The NorthCoast "Football Scorebook" for both pro and college are excellent.
For weekly news, et al, I prefer "The Max" by Kevin O'Neill - he goes just that little bit farther with his support.
Good luck!