Yes Fotomoto is a Bay Photo product that makes it easy to integrate a shopping cart system directly into their printing services. It is a little dated as far as design and UI but the UX is really pretty good. Set up is easy, really easy. The down side is that you are locked into using Bay Photo exclusively. Don't get me wrong, they are an amazing lab and top notch. I use them. The thing is you are in Australia so your customers will automatically be charged the international shipping. I would send them an email and ask them about the shipping costs to Australia before you decide.
It looks like you have some great labs in Sydney that you could use to self fulfill orders. You havn't mentioned what your web site is hosted on. Is it a platform like squarespace, wordpress or homegrown? I would look for some solution that lets you self fulfill the orders through a local lab. I know PhotoShelter has that ability but it does cost some $$. Not a lot to get started but it costs.
Hope it helps.
D.