AutoCAD 2009 has a couple of new shortcut keystrokes, and moves around a couple of others.
CTRL+SHIFT+H -- Toggle HidePalettes command, turns on and off the visibility of all palettes at once.
CTRL+SHIFT+P -- Toggles Quick Properties; can also use the undocumented QuickProperties command.
CTRL+D -- Toggle dynamic UCS (also available through F6).
CTRL+I -- Cycle through coordinate displays (used to be Ctrl+D).