Woo! A small, but rather excellent haul this year. A list, in no particular order.

Rosemary's Baby by Ira Levin. First edition, I believe.
The Gods and Other Lectures by Ingersoll. 1876, first ed., and in good condition. :D
Life's Handicap... by Rudyard Kipling. 1915. 3rd ed? Fair cond.
The Little Ark by Jan de Hartog. 1953. 1st ed?
Earth is Room Enough by Isaac Asimov. 1957. 1st?
Joseph the Provider by Thomas Mann. 1944. 1st US?
Evensong by Gail Godwin. 1999, 1st ed.
The Good Children by Kate Wilhelm. 1998, 1st.
Westward Ho! by Charles Kingsley. 1947 illus.
"Horizon" magazine, 1960.
Sliver by Ira Levin. 1991.
The Spy Who Came in from the Cold by John le Carre. 1963. 1st ed.
Chemical Pink by Katie Arnoldi. 2001. 1st ed.
The Cream of the Jest by James Branch Cabell. 1917. 1st ed.
China Men by Maxine Hong Kingston. 1976. 4th?
Eight Cousins by Louisa M. Alcott. 1917? 6th?
The Complete Claudine by Collette.
Farewell, I'm Bound to Leave You by Fred Chappell. 1996. 1st.
Dead to the World by Charlaine Harris. 2004. 1st.

Not bad for 40 cents each. I'm definitely not an authority on editions, tho.