I quite enjoyed the Age of Five when I read it (as you can probably guess from my username :P)
I also liked her Black Magician, haven't read too much of her other stuff though.
Well she didn't write much more, I think? I've also read both, and I like the Age of the Five much more than the Black Magician, although the later is newer and much more popular.
Anyway, I hope you'll enjoy it here and feel free to PM me anytime you want to talk with a fellow newbie.