So I was really excited about the 276cx, but it seems like it has some issues. I want to be able to load and overlay maps. Specifically, I want to overlay topo and the hunter series maps. I live near a vast amount of forest land and there's a lot of public and private land intermixed. At the same time, I want to be able to run City Navigator. That said, what are your recommendations? I'm also open to arguments that the 276cx is the way to go. Thanks!