I have a Garmin Etrex Legend gps and would like to purchase software for the unit. What is the best software for hunting, for this unit? I was either thinking National Geographic's TOPO! State series (PA edition) or Mapsource Topo East. I would like topo maps that include all roads and trails on State Game Lands and state forest land. I do know that the National Geographic map can not be downloaded on the gps but with a small screen on the unit I am nit sure what good it would be anyway. With this software not being cheap, I could use a heads up before purchasing.