I would strongly suggest one of the DeLorme PN series. With the topo software your options of what you can do with your GPS are endless. They are a little intimidating when you first start out, but after you get the hang of how it operates you can do so much. I'm able to overlay any digital map onto my gps. I'm hunting a new lease this year and was able to overlay the propertie's boundry lines onto the map as well. These are awesome units at a decent price.