You've gotten some great advice here. IQ test...to renting...to Austin's list. You're at a really trick place, moving when your child is just about to start Kindergarten. The crystal ball is especially murky -- so I'd vote for the IQ test to get a sense of where you might be headed.

Also, as I've mentioned before, these G/T kids are way expensive. My advice to you is to not stretch buying a house in any district....