Here's a couple of easy to use Automator actions for switching between the 3D Dock (Default on Bottom) to the 2D Dock (black Transparent on Bottom). It's for people who are not comfortable using the Terminal in fear of them screwing something up. Here's a couple of screenshots. Left image is 2D Dock Right image is the Default 3D Dock Note: This is only to be used on Leopard. It probably won't do a single thing in Tiger.