Best Buy offers the TomTom VIA 1435T 4.3" Portable GPS Navigation System
, model no. 1EV4.019.02, for $79.99
with free shipping
. That's the lowest total price we could find by $77. Features include a 4.3" touchscreen LCD, free lifetime traffic updates, 7 million points of interests, preloaded maps of the U.S., Canada, and Mexico, integrated mount for windshield or dashboard, and more.