Apple iPad Mini 16GB Wifi Tablet PCs (White) shipped for $315 by Digital World International
In first place with the cheapest offer is DWI for just $315 which includes standard shipping to metro areas (delivery estimate is 2-5 days).
Next up is eGlobal but even with a discount coupon applied it still only brings the price down to $317 (incl. delivery).
Then for all you Kogan fans, they're in 3rd place with a shipped cost of $318.
So it basically comes down to a choice of which merchant you prefer, the only thing with Kogan is it'll take longer to get your iPad Mini (delivery is 2-3 weeks) whereas the other two should deliver within a few days.