I read the Halo books too, but they were nothing special. Just back story for fans.
I've read so many books, but now that I think about it, I don't remember most of 'em anymore. I remember one semester in middle school I read so many AR books that I had like 156 points. Then I stopped reading AR books and still ended up #3 for the most points at the end of the year. When I want to read something, I will friggin' read it.
To add to the book list...
The Merlin saga and Heartlight, T.A. Barron (definitely a young-adult series though)
Jurassic Park and the Lost World, Michael Crichton
The Dungeon series, Jose Philip Farmer
*looks up AP reading lists*
Cry, the Beloved Country- Alan Paton (see the movie with James Earl Jones)
Count of Monte Cristo- Alexander Dumas
Frankenstein- Mary Shelley
Grendle- John Gardener
The Good Earth- Pearl S. Buck
The Grapes of Wrath
The Old Man and the Sea- Ernest Hemmingway
The Pearl-
The Iliad and the Odyssey- Homer
The Scarlet Letter- Nathaniel Hawthorne
Z for Zacharia- Robert C. O'Brian
Animal Farm- George Orwell
Gulliver's Travels- Johnathan Swift
And then there were None- and other Agatha Christie novels
One Flew Over the Kuckoo's Nest- Ken Kesey
Books definitely not on the list:
A tale of two cities
Heart of Darkness
The Blind Assassin
The House on Mango Street
The Great Gatsby
Huckleberry Finn
Anything Shakespeare. 'cept maybe Macbeth.
Brave New World
I remember reading the secret of nimh. I just don't remember any of the content.