Pop Chart Lab has a very cool poster titled The Insanely Great History of Apple. It's 27" x 39" and sells for US$36:
All new for 2013: the world's most comprehensive mapping of Apple products. This print shows every computer, handheld, peripheral device, software, and operating system released by Apple in the last thirty years, from the original Mac through the MacBook Air. Over 500 products are sorted according to type, including the connections between various form factors which have arisen as Apple has invented--and reinvented--insanely great products.
Unfortunately, I couldn't find any shipping information to Australia.