Millennium is a CD store in Charleston, SC, that is bulking up its used disc inventory by offering iPods in exchange for used (but good-condition) CDs. They'll take the discs in person or by post.
45 CDs = 512 MB iPod Shuffle
65 CDs = 1 GB iPod Shuffle
85 CDs = 2 GB iPod Nano
110 CDs = 4 GB Nano
130 CDs = 30 GB iPod
175 CDs = 60 GB iPod
(via Digg)