Here is my Old School Gaming hall:
D&D Rules Cyclopedia
T1 The Village of Hommlet
B4 The Lost City
Plus the Keep on the Borderlands, which I mentioned earlier.
Not a bad hall if I say so myself. Are are in immaculate condition, and I'm quite tempted to switch over to a Rules Cyclopedia based game.
Edit: I also received the 3rd, 4th, and 5th books of Lankhmar. Not entirely D&D related, but I'd wager most who were interested in what D&D stuff I received would also be interested in my ever increasing Leiber collection.