Aussie Retailers & Prices
If you're in Australia and looking for retailers other than Apple Store, then the following either now have them in stock or are due to receive stock soon (therefore prices are listed but not yet in stock). You'll need to confirm with your local store. It seems that the stores that do have stock have only received the 32Gb models so far (such as Big W and Dick Smith) and they don't have all colours:
Good Guys
32 GB - $310 (save $19)
64 GB - $414 (save $25)
Big W
32 GB - $318 (save $11)
64 GB - $??? < not yet in stock but should be roughly $428 (save $11+)
Target
32 GB - $319 (save $10)
64 GB - $ Not listed
JBHiFi
32 GB - $328 (save $1)
64 GB - $438 (save $1)
Dick Smith
32 GB - $329
64 GB - $439
Kmart, Office Works and Harvey Norman have nothing listed at this stage.