How can I make shredded beef? In Australia, shredded beef is not something you can buy easily. I haven't seen it anywhere except in restaurants.

I would like to know how I can make my own restaurant quality shredded beef; the same kind that appears in "Mexican" restaurants. Please also provide information on which cut of beef I should be using along with the process.
You can use Chuck to make your shredded beef. Cook it for a long time, at a low temperature, until a probe slides in and out of it with no resistance. Braising in a liquid seasoned with spices like cumin, garlic, and chili powder will get you the flavor profile you want (I recommend either finding a recipe or some trial and error).