I just purchased a new F800GS and I havent owned a bike or a GPS in a few years. Before the best feature for me was being able to stay off highways and especially interstates while traveling. I REALLY hope to do some dirt and back road traveling. I had used a BMW Navigator before but it was the early version. I've read on here about the Garmin Oregon, Nuvi 500 and the Zumo series. I'm lost as to which one I should purchase. I want the ability to download other files online of other people's travels and probably most importantly I just want to be able to go places using my GPS to keep me on smaller roads. Thanks!