Thanks.
Giving this some thought...
I don't want to hardcode the width.
I still want the 100% that appears to be set in rectangle_top.tpl.
However.. the (center) content cell between the navigation menus on the left and the login menu and cart on the right appears to be hard set.
On my home.php page I don't have anything in the middle except for a few words at the moment and I am unable to shrink the brower down beyond a certain point.
This point is still too far out for 800x600.
