Dear Pete,
I haven’t actually done this yet myself, but have been meaning to try it! Maybe we can work together.
PE can import several different types of “GPS” files. One of them is called GPX. Please see the Help in PE about importing files.
Google Maps can export your map to a KML file. You can google “convert KML GPX” and find a lot of sites that will perform this conversion for you. Then you could, theoretically, import the converted GPX file into PE.
Note that I haven’t been active with Google Maps for a year or so, and the interface has changed quite a bit lately. So I can’t give any really specific advice (about exactly what to click, when, etc.) at the moment. And I haven’t tried any of the conversion services to decide which one might give the most accurate and standards-compliant conversions.
But in general, that would be the way to go. Of course, if PE could import a KML file directly, that would be groovy. However, KML files contain a mess of data that is extraneous to basic GPS-type information, and parsing out the basic Name/Lat/Lon/Notes stuff from a KML is a nightmare.
Please let us know if the above is any help!