I'm fairly new to geocaching, only been at it about a month or so. My problem is that when i get to the co ordinates the GPS does stupid things like the pointer pointing in different directions and the distance changing eratically. I currently have a yellow etrex (cheapest) so my question is which model GPS will give me a more accurate idea of where im at....?? At this point I dont think I need one that you can upload city streets into and all that.