I have Garmin eTrex Legend,Microsoft Streets and Trips 2005 and a X30H.Is it possible to put all of this together and what do I need as far as a cable to connect?Any help,advice or links would be appreciated.
look at pc-mobile.net to see if they have a cable to connect the two units. Once you have the cable, the GPS will need to be set to put out NMEA, not Garmin, data and will appear on COM1 of the X30. You'll need to set S&T to look at that port.
Search for Garmin and etrex here and you'll find lots of posts.