How much PSU Watt's Do I need

So I recently put together this build (Im Australian so prices may vary)
Corsair Carbide 400R Black Mid-Tower Case
Corsair Hydro Series H100i CPU Cooler
Intel Core i5 4690K
Gigabyte GeForce GTX 780 OC 3GB
Samsung 840 EVO Series 250GB SSD
Seagate Barracuda 1TB ST1000DM003
Corsair Vengeance Black CMZ16GX3M4X1866C9 16GB (4x4GB) DDR3
BenQ GW2255 21.5in Widescreen LED Monitor
MSI Z87 MPOWER Motherboard
Samsung SH-224DB 24x DVDRW OEM

So I was wondering what Power supply should I use and how much Watts should it have?(preferably Corsair)
And is there anything I should change with the build?
5 answers Last reply Best Answer
More about psu watt
  1. 600watt, you have nothing unusual, so you can go by the graphics card requirement.

    Edit. I don't mean the system, just the power requirements.
    Nice rig.
  2. I suggest a 600w-750 depending on your price range.
  3. Best answer
    More than enough high quality power.

    Also with the ram get 2 - 8gb modules.

    PCPartPicker part list / Price breakdown by merchant

    Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($89.99 @ NCIX US)
    Total: $89.99
    Prices include shipping, taxes, and discounts when available
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