Despite what I feel about some of the cadetships on offer in Australia I would have to agree with what Howard Hughes has written.
A cadetship is tailored around producing airline pilots. This is not to say that GA cannot do that but I believe that in the near future airlines will look more and more to the cadetship source.
To add to his comments I feel that much of what exists as GA in Australia has a limited life; much of it is dysfunctional, limited and will require you to compromise standards and conditions to retain a job while you strive for the experience level to move up the food chain. If your ambitions do not run to airline flying then serious consideration needs to be given to what route you take as you will need considerable experience to break into the better jobs in GA such as the RFDS.
Unfortunately, there are no easy answers but whatever route you choose it will cost, either money, standards or reputation. Your choice.