KWTGM I had a look at all the geo-tagging software I could find for Leopard. Geotagalog is by far the best for my needs. I have an AMOD GPS logger, which creates NMEA files. I just drag those onto the Geotagalog icon in my dock, select the folder with the images and let Geotagalog import the geo-tagged images into iPhoto 9. Perfect for my needs.
Now I just which I could use Geotagalog to export the tracks to Google Earth. But for that I use the free JetPhoto Studio that shipped with the AMOD.
(Version 1.4)