TomTom is still the best navigator when you are contemplating on detailed map services. I know quite a few guys who wouldn’t embark on a road trip without their TomTom units.
The VIA series has been in the market for quite some time now with good reviews on most counts. The 1515M GPS has a cute 5.3 inch Touchscreen with 480 X 272 pixels resolution. The usual stuff such as USB cable, car charger, adhesive disk for dashboard mount and a detailed instruction manual are included in the box.