Pre-Made Content For New User(s) Site(s)

Greetings,

I wish to pre-populate sites with basic pages and content/dummy text; so that a new sign-up - perhaps a novice - will have a starting-point on which to build her/his site of say, home, about, and contact pages with a default theme, a couple of widgets, a populated menu and all ready for each new sign-up to customise.

Perhaps there is a plugin[s] for allowing this, please?

Your thoughts and opinions gratefully received.

Mike.