I've put my biking stats (such as they are) on my personal homepage, http://www.braverman.org/. This morning I rode with Anne's Garmin ForeRunner 201, offloaded the XML with Garmin's free software, then downloaded shareware a German programmer named Martin Goldmann to convert that to Google Earth's KML format.
The result: You can now download my track and plug it in to Google Earth.