Some System Preferences I needed to setup on a new Mac and
after a Archive and install on Leopard (OS X 10.5)

Auto Login (i.e. don't ask for password on startup):
System Preferences > Accounts >  Login Options 
Note: lock sometimes lock's itself so you may have to unlock it first
Select Auto login: Account

Auto quit of Safari:
  If you enable tabs in safari you may have to change preferences
  to get it to quit automatically on shutdown.
  Preferences > Tabs > uncheck "Confirm when closing multiple pages"
  
  




See also: Restoring User Library Files 

last updated 6 Feb 2009