Green Eyes Black Rifles is a great resource. The Magpul DVD's are another one. Larry Vickers has some DVDs out now, too (but I don't have much info on them).
The other thing you'll want to do is take a course from a quality instructor, they're worth more than 100 books.
"Throughout history, it has been the inaction of those who could have acted; the indifference of those who should have known better; the silence of the voice of justice when it mattered most; that has made it possible for evil to triumph."
-Haile Selassie I