Garmin. Any Garmin you can find for under $200. And don't make it your main tool for navigation either. Bring along a good set of topo maps of the area and a good reliable compass. Know how to use both before heading out. I never rely soley on my GPS, ever!
I have the garmin legend hcx with topo maps loaded into it it came with a case a sd card and topo maps it's simple to run and batteries last a long time in it as stated above get a topo map of the area you are hunting it allows you to see a larger area at one time than the gps the screen is about an inch and half square
I've been using the basic model Garmin Rino, which last I checked was still under $200. It's got a built in radio and you can transmit your position to other Rino users, which it then displays on the map. But the basic Garmin line is about all I've used in my professional and personal adventures since the mid 90s.
There is one tip I have learned over the years in hunting whitetails in late season snow. Do not overlook soybeans left standing on the edges of fence rows, woods, creeks, buildings wherever it might be, this is where the deer will be while the food lasts during late season. December/January will pull deer in from some distance away to feed on the easy to get to food.
I killed one of my nicest bucks off of a very small patch of soybeans that was left after rains created a...