Nexus: Easy to configure dock-style application launcher
There are a ton of advanced settings, many of which have to do with the program's animations and other visual elements. Adding programs to the dock is as simple as dragging and dropping them. You can remove shortcuts by dragging them to the trash bin.
The makers of Nexus also offer a commercial application called WinStep Xtreme which bundles Nexus with a desktop replacement called WorkShelf and a start menu organizer called Winstep Start Menu. If you shell out the $24.95 for WinStep Xtreme you also get a few extra features for the Nexus dock, including multi-level docks.
[via Life Rocks 2.0]