New promotion from eBay just went live, I have tested on heaps of sellers and it seems to work on most actual stores (excludes private sellers) including the usual The Good Guys, Bing Lee, Microsoft, Appliances Online, EB Games.
Best value (% wise) seems to be buying around the $90 range in this offer.
Does not require eBay Plus to use. Stack with eBay gift cards for a further discount.
Enjoy :)