What Watt PSU Should I Use?

I'm building a new PC and I want to know what kind of PSU I should buy for it

AMD A8 6600K APU (CPU with integrated graphics)
Gigabyte GA-F2A88XM-HD3 Motherboard
WD 1TB Caviar Blue HDD
Cooler Master K380 Case
Cooler Master Hyper 212 Evo Heatsink & Fan
Corsair Vengeance 8GB (2x4GB) RAM
Samsung SH-224DB Optical Drive

Many thanks
3 answers Last reply Best Answer
More about watt psu
  1. A 450w would be a good choice.
  2. I may end up adding a discrete graphics card in a few months or so, and I wouldn't want to buy another PSU, so should I get something a little higher?
  3. Best answer
    Yes go to 550w.

    PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($49.99 @ NCIX US)
    Total: $49.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2014-01-05 11:58 EST-0500)
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