The gold standard for simplicity and utility in dash-top systems, the Go 300 ($699; www.tomtom.com) includes a new service that provides real-time traffic reports and automatic rerouting around road and highway congestion.
Earthmate Blue Logger GPS
For Bluetooth-enabled PDA owners, the Blue Logger ($250, including maps; www.delorme.com) is the budget alternative to dash-top systems. Street and topo maps are included.
Magellan Explorist 600
Though it lacks real-time traffic and weather updates, the eXplorist 600 ($450; www.magellangps.com) is still the class act of portable backcountry GPS units.
Photographs, from top, courtesy of TomTom, Delmore, Thales Navigation