Nancy just linked to Santa Cruz Books, and I thought I should the same. Here is a note from Diane at SCB.
Christmas is right around the corner and I am having a Christmas Sale for friends. I specialize in C.S.Lewis and friends first editions (Tolkien, Charles Williams, and G.K. Chesterton) with some Wodehouse for chuckles. All books are 20% off through December if bought from here directly. Store is linked on Femina and Blog and Mablog or you may go directly to the site. If there is anything that interests you email me (santacruzbooks@gmail.com) and I will quote a price. I may also have the same book in stock but in different condition (name inside or price clipped, perhaps a little more wear to jacket) that I will discount more. I have the largest selection of Lewis and Chesterton online but if there is something that you do not see I will find it. Also, I will hold books until closer to Christmas so that you have some time to pay.