How do I create a Node View that has dual and single columns on the same page?

How do I go about creating a Node view that has for example two columns at the top half of the page, some type of seperator, and then a single column across the bottom of the page.  Is there such as thing as a section or page break like one would use in Word? For example:

Header 1Header 2
Section One

Section Two

Header 1
Section 3