To make self rising flour out of plain flour: 1 cup plain flour, add 1 1/2 tsp Baking Powder and 1/4 tsp salt. The above cobbler recipe is also fantastic with blackberries. Just mix some sugar with your berries to make some juice and substitute for peaches. I think a bit of juice makes the cobbler more "'cobbler like" if that is the right phrase. Blackberries are available here in the south now and are so good.
Maviksw, apples are also pretty tasty in this cobbler recipe. I just cut them up, add a bit of sugar to get the juices flowing from the apples and bake away.