Title = A. Lincoln: A Biography
Author = Ronald White, Jr
Description = This biography comes highly recommended, but lists at 800 pages! I assume that, like most biographies, the list of notes takes up a 100 or more pages, but that may not help enough.

http://www.amazon.com/Lincoln-Biography-Ronald-White-Jr/dp/1400064996/ref=sr_1_1?ie=UTF8&s=books&qid=1244286887&sr=1-1