I haven't been to this forum in quite a while. Anyway, I did gain some volume from the fat transfer, however, only about 1 cup size. I an now 15 weeks post-op and I would say that I'm a small B. I did not get a lift because I was so small that they didn't sag very far.
If I were going to do this again to get more volume, I'd try the Brava method where you wear this contraption on your breasts. It stretches the area where the fat will go so that it's not sqwished and you won't lose as much fat. It's also supposed to encourage bloodflow to the area so the transplanted fat cells will live.
About the cost, I had, lipo, a full tummy tuck and the fat transfer. The whole thing cost around $18,000 and the surgery took almost 4 hours. I belive that the lipo and fat transfer alone would have been around $10-12k.