Looking for suggestions as to the best way to cleanly saw (straight, square, no
tear-out) about 18 inches off the length of a 10ft Lowe's laminate coutertop:

http://images.lowes.com/product/conv...8118027007.jpg

http://www.lowes.com/pd_98696-1110-3...ductId=3351914

Since this thing has a 5" integrated backsplash, whats the best tool/method to
accomplish a nice smooth square cut?

Circular saw from the underside?