SwapMyDock is a simple to use drag and drop application that allows you to easily change Leopards dock graphics. SwapMyDock will back up your original dock images and allow you to restore them at any time. There are a bunch of cool docks available for free at dockulicious.com, leoparddocks.net and leoparddocks.com so download a copy of SwapMyDock and go grab yourself a cool new dock.
Version 1.1: Release notes were unavailable when this listing was updated.
Mac OS X 10.5 or later
*Previously available here