4250 and Microsoft Streets and Trips
I am very new to the GPS world and am looking at buying my first GPS, the 4250. What I am wondering is if you can use software like Streets and Trips to map a route and download that to the GPS unit. Does the 4250 allow this and if not do any of the GPS units allow this (Garmin, etc.)? If so, how is this done, is there a USB cable that comes with the unit?