Does anybody know how I can set up visitor trends per region? I would like to see the trend for only the US, or only for France... Etc.

Is this even possible? I believe I read somewhere it was possible, but can't find that article.

If you have the Beta of " Advanced Segments" activated on your account (it is in the right menu) then you could do the following:

-Go to 'advanced segments beta' and choose "Create a new advanced segment"
-Then from "dimension" on the left drag and drop "country" (or city or region) into the "dimension or metric" box. This is in the center of the screen.
-Then you can select the country form the drop down and "test segment" on the right side. This allows you to see the total visitors in that segment.
-Save that report and close adn now you can see a graph of how many visitors came from a certain country.

Hope that helped!