I was wondering if anyone can provide help and give me some suggestions with my pc build. Thanks
Side note, I live in Australia so the prices are different.
http://au.pcpartpicker.com/p/v8R26h
what are you using this build for?
Just saying, for 128 GB SSD's you should be going with Kingston HyperX 3K. The rest have low read/write speeds for small SSD sizes - with the exception of some brands like ADATA.
Good high-tier gaming PC. The Samsung EVO is a solid choice of SSD.
750W is a lot of power, you could run this system on a decent 450W. Here are some PSU choices to consider:
http://au.pcpartpicker.com/part/corsair-power-supply-cs550m
http://au.pcpartpicker.com/part/corsair-power-supply-rm550
http://au.pcpartpicker.com/part/xfx-power-supply-p1650bbefx
I prefer the fully modular XTR and RM units, in comparison to the CSM series. It will give your build a cleaner look.
A gold 650W would be sufficient for dual GPUs. 750W would be preferable. My personal choice would be the XTR.
You might consider building a smaller form factor PC. This cooler will fir most mATX cases:
http://au.pcpartpicker.com/part/noctua-cpu-cooler-nhu9bse2
The 4690K will overclock really easily with this cooler.