OK so this is not your normal kind of deal from a retail outlet, however it is still a fantastic deal.
The short story is that if you live in QLD and have <b>NOT</b> already claimed a rebate for insulation or a hot water system then you are eligible for the $500 ($100 for pensioners) offer.
I had my pre-installation inspection recently and the system that is being installed is a 315ltr Conergy Split System.
It appears Conergy has the contract for all of QLD so it will always be one of their products.
Normally you have to register your interest, after which you are contacted via email with the link to the application pack.
The link I've provided in the deal will take you directly to that page so that you can download an application, without having to wait for that email.
More info on the Clean Energy site