Not that I've been letting down Borders and Dymocks:
1 "The Selfish Gene: 30th Anniversary Edition--with a new Introduction by the Author"
Richard Dawkins; Paperback; $9.98
1 "Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium"
Carl Sagan; Paperback; $10.91
1 "The Demon-Haunted World: Science as a Candle in the Dark"
Carl Sagan; Paperback; $10.17
1 "The Varieties of Scientific Experience: A Personal View of the Search for God"
Carl Sagan; Hardcover; $18.45