Multiple selection using keystrokes and mouse clicks

[Escapee]

In windows I use ctrl+click a lot to select data that are not next to each other i.e. cells in Excel, dates in Outlook, columns in Word etc.
What keystroke, mouse click combination is used in the Mac environment? Please help.

[jbarley]

cmd+click for multiple item selections
shift+click for start selection -> end selection in a list.
also here is a link for keyboard shortcuts that might be of interest...
http://support.apple.com/kb/HT1343

jb.