Set up two different accounts and log out/in between them.
Set the various programs you need to start automatically (from dock, options -> open on login)
Fast user switching: http://webcache.googleusercontent.com/search?q=cache:6BNJS4W...
Set the various programs you need to start automatically (from dock, options -> open on login)
Fast user switching: http://webcache.googleusercontent.com/search?q=cache:6BNJS4W...