Original iTunes look!
Many people weren't too happy when Apple dropped the Aqua look in iTunes 7. There is a cool modification called Aqua4iTunes that you can do to restore that Aqua look to iTunes 7. Note: according to the developer, the latest version of Aqua4iTunes is only compatible with the latest version of iTunes (7.1 or 7.1.1). Download the mod here on the developer's site.