Apple OS-X Keyboard Shortcuts

Control+F2

This one's truly useful - it drops down the Apple Menu! Once you have the menu down you can navigate around whatever's currently in the menu bar.

Control+F4

Another goody, this one steps through each open window on the desktop (as opposed to Command-Tab which steps through each currently open application but only brings up the frontmost window belonging to each application.

Control+F16

Brings up the print dialogue.

Command+Shift+3

Takes a shot of the entire screen and stores it in the clipboard.

Command+Shift+4

Changes the mouse cursor to a selection tool so that you can define the area to copy. Click and hold the mouse to define the area. When you release the mouse, the image is copied to the clipboard.

Command+Shift+4+Spacebar

The mouse cursor changes to a nifty little camera. Whatever window you hover the mouse over becomes the target. Click the mouse to copy the image of the window to the clipboard.