Wanted: hardcover editions of Jurassic Park, The Hobbit, and Different Seasons -- anyone?

I have a cool new bookcase in my house and I'd like to populate it with hardcover editions of some of my favorite books. I visited all the local used book stores, but there's three more I'd like to find (ideally inexpensively).

I'd like hardcover editions of Jurassic Park, The Hobbit, and Different Seasons.

Do you have a copy that you'd like to give to a good home where they will be cherished?