I decided to play around the more basic aspects of Google Maps, and put together a working demo with a bunch of comments in the HTML. It covers most of the basic parts to get quickly up and running.
You can view it in action at http://wdwescort.com/other/maps/maps_example.html, and then get the page source to roll your own. Please note that if I move it later, I will add a comment.
I will add some additional capability this week-end when I play with this some more.
BTW – There is a Version 3 of Google Maps in the lab, but I am working with version 2 right now.
It appears in the browser as follows: