I use an old Visor. It was cheap, works good, and has a back up module. It runs on AAA batteries so you don't have to worry about a charger. (Just make sure you have batteries!) I also have a palm IIIex that is set up the same way for a back up pda. No need to take a $200-$300 pda into the wilderness with you. As for programs, I just convert my gpx file to palmdoc format and use an ebook reader to view the GC.com pages. I log my finds and notes on a memo and log everything when I get back. Good Luck!