[pct-l] Which GPS should I buy?

[Molly Barth]

Hi there --
I've been recently researching all the possible gps devices to buy for my
2011 thru-hike.  Quickly, I was in over my head in techno-gargin.

>From what I understand, there some gps devices have pre-loaded maps or
include map software, while you must purchase map software separately for
other devices.  If I am to use Halfmile's waypoints, do I need to load maps
as well? (see I'm totally lost...).   What is the best affordable gps device
for the trip?

Thanks for you help!

-- Molly