I came across this offer a long time ago and just remembered it- you can get 10 hardcover books for $20 from Weekly Reader. The only drawback is that you can't pick the titles and the titles pictured may not be the ones you get. It's a great start for me because I am really excited to begin building a library for my baby. In fact, I'm more into the idea of buying him/her books than anything else!

Weekly Reader Store