the woodlore woodsense course is great. bit of a life-changer.
i think anyone could learn a lot from just taking a week off work, find somewhere quiet to camp and just stay out there for a week looking and listening etc. read a few tracking books well in advance and i think it probably would just happen to be honest. thats what i would recommend if moneys ever an issue.
the folks on this site who run tracking courses all seem excellent too, i'd maybe do a search and see whats what.