Capture the Screen in OSX (take a snapshot tip)
If you want to take a snapshot of your screen on OSX Lion, Snow Leopard or Leopard press:
Shift + Command + 3 Keys simultaneously. The screenshot will be saved as a .PNG file on the desktop.
To find more shortcuts look into: System Preferences -> Keyboard -> Keyboard Shortcuts (tab).
This option is available on older OSX versions too.