Since a got my new iPod with video a while back I have been slowing adding the artwork for all my 12,000 songs. It has taken me some time and was slow going. Corripio is a nice little program that I found today that made it easy and I finished them up real quick. It grabs the artwork from iTunes and then adds it to the mp3s. It’s only for the Mac, but if you are looking to add artwork to your mp3s, this is the way to do it.