My favorite sci-fi book is Wool by Hugh Howey, which features a strong female character named Juliette. I grew up surrounded by strong women just like Juliette, so I can really identify with her.
My favorite Aussie celebrity is Bindi Irwin. Loved her on "Dancing with the Stars". She's a spunky little thing, so I think she'd be great inspiration for a heroine in a novel!