sewid: Depends what you're buying... but the majority of costs aren't as high as those unless you are importing a fairly expensive vehicle to begin with..
And QLD probably does get the best deal.. lower stamp duty, most of the ships apparently come through Brisbane first so slightly less shipping costs.. and in the end we pay less on the roads for petrol. If you're in NSW or VIC you get screwed on everything.
SteveL .. i checked out ozforex. But when i checked the rate, things it was pretty much identical to CBA in the final figure, or not enough to worry about. My vehicle was relatively tight-ass though so the FOB amount was only a few thousand over here which probably negated any difference. I found CBA wasn't too difficult to deal with, as long as the chick has done one before.. Just say, "this into this, here is my money.. go do".