Import summit list into Garmin Mapsource?

I would like to import a list of F/AB summits into Garmin mapsource.
Has anyone done it already or have any suggestions about how to go about it ?.
Thanks,
Nigel.

For future reference:

I converted the google earth summits.kml file:

http://www.summitsbase.org.uk/tiki-list_file_gallery.php?galleryId=3

with gpsbabel

http://www.gpsbabel.org/

into a Garmin GDB file.