Got an EDR email this morning with an activated offer for Google Chromecast for $38.00. Not sure if targeted or if you need to have an EDR card prior to get the deal.
Will let you know when I go try later on.
EDIT: In Store Only
EDIT2: Just got one using an unregistered EDR CARD. So go wild.
Don't forget your '$5 off $50 purchase' coupon from Woolies! (If you find another bargain, I highly recommend Optus vouchers for $30 or more since it gives you a 4c fuel voucher and 10% extra credit!)