I have given you 2 tb hdd and 256 gb ssd as you are into movies and videos i thought you will need a lot of space.
the blue ray writer is also for that reason.
You are not into OC so i have given you the locked version of i7 4690 and h97 motherboard.
And a strong enough GPU for gaming i can give you a much better GPU you have a good budget but you are not into hard gaming so i thought it would be a waste of money to give to high end GPU.
32 gb ram doesn't mean fast PC the if the system requires 2 gb of ram then it will draw 2 gb & 30 gb will sit idle.
In a modern gaming PC the max ram required is 6 gb and suggested is 8 gb so for general purpose pc 4 gb is more than enough.
i7 3930k is a 3rd generation processor an old one in short and if you are not into overclocking then getting a k version processor and a liquid cooler is a complete waste.
the GPU you have chosen is very poor and 3 generations behind.
750 watt is a total overkill for this system 450 - 500 watt is what you need and if its corsair cx 750 then a poor quality PSU.
hope this helps if you have any questions feel free to ask.
I dont know what brands are available in Australia but seasonic, xfx,super flower , rosewill capstone , EVGA B2 or G2, corsair hx/tx/ax are some good quality PSU to choose from.