Cryptonomicon - Neal Stephenson
Reacquired immediately after I graduated from Basic training and hastily finished. I crammed through the last 300 pages in about a week and missed out on a lot of badly needed sleep, but it was worth it.
Newton's Cannon: Book one of the age of Unreason - Gregory Keyes
Mailed down to me a week and a half ago, I finished it over 2 days, during which I should have been studying (Still did excellently on that block test but nearly died of stress the night before.