http://www.earthquakemap.com/ Has anyone tried this? I've been messing with it and it looks nicer than ExpertGPS and it only cost $10. It loads gpx files and plots them on topo maps and aerial photos (same data as ExpertGPS). It also allows you to export to a handheld (palm or pocket PC), but I have not tried that yet. It requires a $20 program on your handheld. It also allows you to track your position on your laptop, shows the whole area and when it plots the cache on the map, it shows some info about the cache when you put the mouse over it. I also like its interface better.