The anti-GPS lot can stay shut up, this isn't a question about sat-nav. Anyone had any experience with Garmin GPS units (specifically the eTrex Legend or Venture) along wih Tracklogs digital mapping software? Is that combo going to be any good for off-road cycling and walking? Basically I after sorting out a route in advance on the pc and then being able to follow it on the ground using the GPS for the majority of the time but with a map+compass as backup.