I had a pretty good carb'd apple batch from the year before last. If you're going to carbonate it, it's best to decide this before you put the ingredients together. You want to make sure that you leave the yeast a bit of wiggle-room, ie, if the yeast you use only goes to 14%, don't try for a SG that's going to give you more than 12% when it's finished. Then let it ferment out until it's below 1.000, rack it, let it clear, rack it again, then prime it with 3/4 cup honey per gallon (mix some must into your honey before adding it to the batch or you'll be mixing for frigging ever), bottle it in beer bottles or champagne bottles (I use perrier water bottles when I run out of the others) and wait two weeks for it to carb up.