RE: what GPS are you using?
The original eTrex Legend and it's awesome. IMO it has everything a diehard hunter needs (maybe a color screen too - as per the Legend C). You can download Topos to it, good battery life, WAAS, plenty of memory and features to do about anything a hunter needs.
I work with GPS' for a living and the eTrex series is one of the best on the market IMO for the everyday hunter.