Garmin
From GeoWiki
The manufacturer's website Garmin.
Garmin make several ranges of GPS receiver.
The eTrex range is arguably the most popular. A comparison chart of the models can be found Johnny Appleseed's Comparison Chart.
Garmin symbols can be changed for many models. Instructions can be found here - Geocaching Symbols on a Garmin GPSr
Garmin Models
(add more if you want)
Software
MapSource is Garmin's primary mapping software base platform. They have introduced new mapping visulisation/management software called Basecamp
Maps
There are many free maps available for Garmin GPSrs through Open Mapping Projects
