John

I recently attended the Bosch 2 day introduction Hybrid course which was also very good.
I am attending the 3 day advanced course in November which as the name suggests is aimed at more involved procedures and theory.
I guess it depends on where you are in the country as to where you attend but I would think that there should be someone providing training in your area.
As Darren says James Dillon's courses are also good value for money.

Steve