Mac GPSpro
From GeoWiki
Mac GPSPro works with both Garmin and Magellan GPS receivers. It can be used for transferring Waypoints, Routes, Tracklogs, and GPS satellite Almanacs. MacGPS Pro can give a real-time display of GPS information on a moving map. It can import of maps from a wide variety of sources. Maps can be used to graphically create, display and edit Waypoints, Routes and Tracklogs.
See also Mapping software.