First up, I never actually bought anything off these guys so I can't say for sure that they are scammers but they definitely made me suspicious enough not to bother with them. I found a camera I wanted that they were selling for a very reasonable price so after I looked at at a few positive reviews, I decided they seemed legit.
First red flag was after I had submitted my credit card details and my bank suspended the account due to "suspicious activity". After doing a bit more research I discovered that they're not Australian at all, they're actually run out of New Jersey. Another red flag. I tried calling them numerous times but the number listed on their website only gets you a recorded message saying no one is available and to call back later. They also didn't respond to emails. I've also found out that they hide their online identity. Most online retailers will make some effort to be transparent but these guys don't.
I ended up cancelling my credit card. They might be legit but I strongly suspect they're dodgy and their prices are too good to be true. My advice would be to save yourself the headache and find a real Australian distributor.