I'll refer you to the tried-and-true Hoagies' page on the subject:

http://www.hoagiesgifted.org/psychologists.htm#susa

These are testers recommended--often (if not always?) by other Hoagies users--as accustomed to working with GT kids. I recommended a new tester in our area after she did a fabulous job with my DS7.

I'd recommend starting there. Welcome to the start of the long journey... laugh

Kriston