Excellent ending. I loved the confrontation with Tom. Using a legally and magically binding contract to defeat him rather than an epic battle was great and unique. And taking out Dumbledore in one fell swoop as well was brilliant.
Using the epilogue from DH for Ginny's fantsy world was a very nice touch, as was having it be 19 years later and finding out what had happened to everyone.
I look forward to seeing your next postings. I'd especially love to see either Marriage Contracts or Technomage.