One of my reasons for replacing my D90 with the D7100 was to be able to shoot higher ISO and this shot has validated my purchase for me (and that of the Nikkor 70-200 mm f/4).
This was shot at 1400 ISO and has been processed using Viveza and the Nik de-noising and sharpening software.
My effort at filling in the dead space is lame, I'll grant you, but I am otherwise quite pleased with this image, which was shot indoors in late afternoon light.
Let me know if your practised eyes see room for improvement.