Any recommendations for software to maintain a database of books that we own? Features:
- Preferably free. Inexpensive lifetime subscription or one-time license fee OK.
- Works with a bar-code scanner.
- Allows me to mark books as unread by one or both of us.
- [Optional] Retrieve picture of book.
- [Optional] Allows me to rate books.
- [Optional] Allows me to list books that I want to buy.
- [Optional] Allows me to link books as part of a series.

http://librarything.com I love it! What I’ve done can be found here: http://www.librarything.com/profile/miraclaire