There are three cookbooks on offer (limit of 1000 in total)
"Two Asian Kitchens" by Adam (winner of Masterchef) -333 copies
"Relaxed Cooking" by Curtis Stone -333 copies
"Dinner in 10" by Fast Ed (of Better homes and gardens fame) -334 copies
All you need to do is spend $30 on any Yates products (easy to do given that it is Spring) then register online and send in your receipt or a scan of your receipt
Hmm, time to use those free $10 Home Hardware (also usable at Plants Plus and Thrifty Link) gift cards methinks — I have two: http://www.ozbargain.com.au/node/51610
Like any self-respecting OzBargainer, I get a kick out of stacking bargains. :]