Originally Posted by Cylphid
EDIT: Forgot to mention - making the shutdown/restart/logoff button easier to access would be a plus
WIN+I, <up arrow>, <enter> brings you to the Sleep, Shutdown, Reset menu.
Just <up arrow> again to your choice.
<ctrl>+<alt>+<del> to get Lock, Switch User, and Sign Out menu.
WIN+L locks the computer immediately.