Substitute for Nestle Semisweet Chocolate Chips in Australia?

Semi sweet equates to our garden variety dark choc chips in Australia. If like me You're wanting a bit more of a cocoa hit try looking for 70% cocoa cooking chocolate or choc chips. I know Aldi get them from time to time and our Super IGA gets them so I'm guessing the other supermarkets will maybe have them or try european style delicatessens for them.

My mother in law has had the same troubles as she uses the nestle semi sweet morsels for chocolate crack cookies. The cookies just don't crack the same with other chocolate chips. She tells me it is due to the quality of the cocoa butter. She has experimented and found a half-half mix of cadbury dark choc chips and milk chocolate chips does the job.