Best tool I've been using lately is Garmin's "Basecamp." Jon from Bookcliffs found it for me.
Excellent basic functionality for waypoint management and file import/export/exchange Kinda clunky, but you get what you pay for. (free.)
There is a directory on the FTP server called Cruise_Moab/2012/Trails/ if you want to update the gpx files stored there with "better" ones. I figured this way they would be easier to find in the future after I'm gone and this thread is lost in the archives.