i have done a level 1 course for driver training at eastern creek still ok but not brilliant, yay emergency braking swerve etc wet dry. It was good but would love to progress to level 2 which is controlling understeer oversteer etc but you can't do it until you have a full licence.
Of course there are courses suited to each type of racing, ie a good one for cicuits might be one of formula ford courses, most courses will be designated to a similar style because it becomes hard to cover too much in one day and each different form of motor racing requires different skills.
Personally i reckon would be good to do but if you can't find any just do lots of track days eventually you'll either learn youself and improve or by watching the car infront and talking to ppl there.
My uncle has done multiple courses with john bowe (jaguar), Geoff Brabham(bmw) and many others. He used to race before doing these courses though and probably knew most of the stuff but it was really a day where he could let his hair down and open up his cars legally.