Lovely end. But Pansy should have been left to Neville. I would have loved to see her flayed. Creative way to end Voldie, but I think you should've stopped with the Deaters losing their magic -- a far greater punishment for them to be forced to live as the Muggles they hate so much. And Dumblie's end was pretty good, too. Though it was too much for it to take so many to defeat. Harry should've been able to do it himself. But then we would've missed Hermione's neat trick.
Very good story. It moved right along without dragging in any place and had a rather satisfying ending. Now you need to get to finishing some of your other stories -- too many in progress. ;)