Ed, you want a tip for something that you can try with the lindt?
M,y grandmother sometimes used to make a very simple, very tasty dessert, you take frozen(it's very important that they're frozen) blackcurrant, cream and powdered sugar and blend it in a blender until you have a thick paste and then it's ready, the 70% lindt goes very well with this and I'd reckon that you Aussies would like it because of your hellishly warm climate.
I don't remember the exact proportions since I haven't made it in a long time but if anyone's interested I can ask my gran when I see her tomorrow.