chocolate training

G-day all,
im looking for some advice/opinions on cchoclate courses....I have basic knowledge but was considering doing a course perhaps before I return home to Australia in Febuary to start my chocolate cafe.....i have some bakery/pastry training but am really interested in learning more regarding gourmet chocolates...

any ideas?....i know of a couple of places in the states that run a week or two day course...

I am living in nashville Tennessee but am happy to travel throughout the states for a good course.

If anyone has recommendations that would be great!..
thanks michelle-Jo