oh, and another thing!
Let's talk about sexism here for a moment, shall we?
I believe, and I may be wrong, that if your FATHER is British, you can apply for 5 yr residency and eventual citizenship. But if you MOTHER is British, only 2 yrs residency for you and no citizenship.
(based on a number of Australians I have known - again, I could have misunderstood)