I'm finally starting to get my collections of DVDs, CDs, VHS tapes and books catalogued thanks to a great freeware program called MediaMan.

All I have to do is enter a title into the wizard. It will search for it on Amazon, providing the cover art, information on track names for songs, cast info for films, etc. If the materials are too old to find them specifically on Amazon, I can scan the barcode in from a webcam, and it'll search by that instead.