Moving the OS X dock

From http://www.macosxhints.com/book/103scripts.html:

3-6 The Top-Mounted Dock

To put the dock at the top of the screen, open the Terminal and type:

defaults write com.apple.Dock orientation -string top

Also: left, right, and bottom work

3-8 Pinning the Dock to a Corner

To place the dock at the far right (bottom if vertical) of the screen:

defaults write com.apple.Dock pinning end

To place the dock at the far left (top if vertical) of the screen:

defaults write com.apple.Dock pinning start

To place the dock back in the middle of the screen:

defaults write com.apple.Dock pinning middle