I am just completing a big feature (seven pages for Trail Magazine), plus 6 accompanying videos, to demonstrate how buying a second-hand Etrex from Ebay, you can access the multi-billion dollar satellite system.
I will be explaining everything from how to connect the satnav to your computer and update its firmware, thru navigating with it, using best practice, down to uploading your routes, tracks and waypoints onto Google Earth.
I am going to post the article and the videos at the Learning Centre, and I have a lot more news about other articles I have written and videos filmed which I will post more about later this week.