The Function Keys F3 – F9 in Mac OS X gives you access to the various ExposÃ© “views”. For example, pressing F3 on my MacBook shows all open application windows. (Depending on your Mac, the function keys may be mapped differently. Check System Preferences – ExposÃ© & Spaces for a full list.)
While trying to figure out a keyboard shortcut, I happened upon a neat little “feature” of Leopard. By holding down the Shift key while pressing a function key gives a nice little slo-mo version of the ExposÃ© transition.
I know that’s not a great explanation, but give it a try and you’ll see what I mean.