Garmin eTrex GPS
 

Have tested this GPS and have found that some accessories make GPS use a lot easier. The eTrex is a great little no-frills unit that will get the job done, even in the SC swamps and oakridges.
The GPS case will hold the unit, extra batteries, compass, cables,etc even when navigating with the unit on or have all the gear together.
The 4-AA Battery Recharger Package will ensure enough battery power for 44 full hours of operation.(2 sets of 2)... AA battreies weren't easily found in too many roadside country stores and had to be purchased before venturing out.
Here is a website where you can view/purchase these items.
http://www.gpsoutfitters.com/bag.htm