Collectorz.com Book Collector Mac OS X Publisher Review:
Book Database Software, catalog your books automatically, no typing needed
Catalog your books automatically, no typing needed. Just type author and title or type/scan the ISBN barcode to download all data from various sources on the internet (like Amazon and various library sites), including author, title, publisher, genre and the cover image. Browse your collection as list or use the Image View to view your cover images. Export your list to your iPod and take it with you to the store.