we did the wppsi 3 (4 now) it was great. Btw if you are looking into diet do check the possibility of food intolerances. Eliminating a food group has had a profound effect on DD's personality and behaviour in general. You can do an elimination study although these can be stressful and hard for the child. We chose to visit a nutritionist who gave DD a "biometric" test (which I'm pretty sure is some sort of quackery) however, it did back up our own findings and gave us a starting point rather than just feeling around for answers.
Your daughter sounds like mine - I told her before hand that it was really important that she do her level best so that we could put her in the school that was going to be the most fun for her type of brain (we talked a lot about round pegs and square holes). We had a meeting with Ed psych before hand where we could explain our concerns and that helped her when dealing with DD, you should be able to the same.
