RocketDock

Have you ever glanced over the shoulder of a Mac user and seen the nifty little bar of icons at the bottom of their screen? This is known as a "dock." For those of you that haven't seen this, a dock is simply a bar that can be set to the edge of your screen with a background and a row of shortcut icons. The function of a dock is to bring quick access to these shortcuts in an organized fashion relieving your desktop of clutter. It acts much like the Quick Launch, pointing each icon to the original folder or file.

Note: RocketDock does not remove, replace, store, duplicate, or backup any of the items you drag into the dock. You should never delete the original items. Dock shortcuts are not stored as files and cannot be dragged back onto the desktop or anywhere else.
http://rocketdock.com/