Brining is a great help. it adds moisture. Chicken is a favorite, I remove the skin, brine for a few hours, then place on one side of the grill with the small fire on the other side and hickory bark on the other side, (indirect heat) smoke till the internal temp is appropriate and the joints are loose indicating it is cooked.
Have heard of oak being used , haven't tried it, what woods do you have in Australia?