Don't forget to set up a 'wish list' either! Make sure before you order a book to look for the little icon's stating whether it's missing a dustjacket or if it's an ex-library copy (although I've been lucky enough to get ex-library copies of some Joe Lansdale signed/numbered limited editions for pennies on the dollar and have been happy with those!).
Thanks for the heads up, KRF! (I don't mind ex-library copies, but then again it depends on the condition of the book --I unknowingly bought a couple of series books from Amazon that were library copies I know some sellers DO say ex-library copies in the descriptions, but obviously the ones I bought did not!)