First off, I am a GPS noob. I have no idea what I'm doing, so I need something that is easy and quick to use. I will be using it in my wheeler, on my quad, and in my pack. I want topo maps and POI like old mines and stuff. I also need it to show roads (even old ones) and be able to add my own roads and mark them. Should be all basic stuff. I'm thinking about buying a Garmin GPSMaps 64s and adding 24k Topos to it. Is there a different unit that I should consider instead? What are the best 24k maps to get? Is there something I'm missing? Any advise would help, I'm wading into completely unknown waters!