Those are Australian prices Drizzt, it's expensive over there.
That power supply just won't do. Get the case separately, I personally recommend the Coolermaster 690 or Centurion 534. Also check out the Antec Nine Hundred, but expect to pay more. There is also the NZXT Alpha and Apollo that are going to be good and inexpensive. For power supply, see if you can get either a Corsair 520HX or Antec Neo HE 500. I've looked through the site you've linked and couldn't find anything decent for the price (don't really know prices too well either).