I would look at the Davidson Academy since you are so very fortunate enough to live right there.

If you want to continue home schooling - you may not even need a high school diploma; from what I understand in the US more and more Universities are accepting Home Schooled kids without one - they hand in a portfolio, write an entrance exam and essay and do an interview with the faculty they are interested in pursuing.

Mom to 3 gorgeous boys: Aiden (8), Nathan (7) and Dylan (4)