As for other American stuff, I'll tell you if I see them or not.
Pop Tarts - In my local supermarkets all the time.
Cherry Cola, Vanilla Cola, etc - In my local independent supermarket.
Corn Dogs - I only see these at carnivals, school fetes and American food stores.
Hershey's Chocolates - I see these at one in every two supermarkets I go to.
Reese's Peanut Butter Cups - See these a lot around here. Not that I care because I LOVE THESE!
Other American Candy - Only at my American Food Store.
The food store is on Cochranes Road in Moorabin, for those interested! The place is awesome!