i got a magellan triton 400. i love it. simple to use and very accurate. it also has a sd slot so you can download as many topo maps. i got a 2 gig card and loaded the whole state of oregon and have a little room left.
A few years ago I was searching for the best GPS for woods hunting and called technical support at a company that sells many different brands of GPS. The tech reccommended a Garmin, which I subsequently bought. I have been very satisfied with the Garmin. Buy the best model you can afford.
I own the Garmin GPSmap 60CSx. It has worked well and there has never been a situation that I haven't been able to get a signal, even in dense forest or canyons. I did buy a larger memory card and as you probably know you have to buy the software for specific maps or a memory chip that has it all preloaded. Its cheaper to buy a CD/DVD and load your own maps, but its more convenient to just buy the memory chip ready to go. This particular GPS also supports marine maps. It has a nice large screen and color maps and lots more features than I'll ever need or use. Battery life is good, but I always carry an extra set, just in case the batteries die suddenly. This GPS is also water resistant, so should be ok in rain.
Far from an expert here and still depend on my old Slyva Ranger Compas much more than my GPS.
I have a Garmin 110 Rino. It is a GPS/2 way radio. It does have some great features. You can tune the radio into any channel and freq you want so if you hunt with differnt groups you only need the one radio instead of one for each group. Also if your outdoor buddys have Rinos, when someone calls you, you can tell the GPS to "go to" that caller and it will lead you righ to that person as long as their GPS is on.
I use the GPS for ice fishing if you find a good hole and want to come back to it you do not need to try to triangulate or stick something in the hole for all to see.
What do you do with those empty nylon feed bags or dog & cat food bags? Can you say recycle? I use them for target practice for the youngsters. Take your empty shopping bags, stuff them into an empty nylon feed bag. You can also use old clothing or rags, (but put them in the bottom so it doesnt get top heavy). When your bag is full, fold the top over, punch some holes into the top and zip tie the top shut. Paint, draw, paste, or have the kids decorate their new target. Set it out 10 or 20...