Word is not your best choice for a newspaper/newsletter. The skill needed
to do it right is pretty high. You will be working with section breaks,
columns, page breaks, graphics and more. Another option is to use text
boxes which elimiates the need to work with columns... but your text doesn't
flow between them.
If you are going to be doing a newspaper/newsletter often, you might want to
consider Publisher (MS) or something like Pagemaker.
As for templates... start here:
http://office.microsoft.com/en-us/templates/default.aspx
of just google for it. You'll get lots of hits where you can purchase
templates.