I just got a Garmin GPSMAP 60cx. I haven't fiddled around with it too much but I have used it to map some deer trails while shed hunting yesterday. I've used garmins before and have always liked them. I'm sure once i've had a chance to explore the machine and software a bit it will end up being a very useful tool for scouting.

It is possible to make maps using gps waypoints or to overlay tracks onto a digital topo or sat image. However, I only have experience using Arcmap for that so I can't really suggest an easier way to do it yet.