I think you will like Dr. Newman when you meet her. It is a big financial step, I know. We looked into other psychs too, but Dr. Newman's name kept popping up...here on the forum, on Hoagie's, and other parents in the area. As you said, having someone who understands in invaluable. She is very good at what she does, and we are so fortunate she is local. She has children who come from all over Atlanta and even some from out of state!
It sounds like you've always known your son is a little bit different, now it's time to get answers. Going through the assessments felt as if I was finally able to put all the crazy pieces of my son together. I hope it will be the same for you.
We looked into Greater Atlanta Christian, Hebron Christian, and Wesleyan, but two are so far away (not to mention extremeley pricey) and the other is not sure what to do with a child like DS. So, we've decided to go the public school route. We are fortunate to be in Georgia though. GA has great gifted funding and they do have the tools in place to accomodate highly gifted children...however, getting them to do it is another story. Advocate, advocate, advocate!
Piano has been great for DS, although I'm not musical either. His brain seems wired for it. He actually plays with his eyes closed...he cracks me up

Ditto on your last paragraph! I wonder if it's like that for most parents of GT kids? I went back to college when DS was six months old to relax!
Have a great meeting. It feels wonderful to tell everything to someone who understands.