PSU for OCing a 3570k?

I'm hoping that my 3570k, when I acquire it, will last me a long time. Is OCing it a good idea? Maybe not for now, but for the future when games begin to need more power?

If so, how much power would I need running an i5-3570k and an HD 7870? I'll be using this board since I've no plan to crossfire my cards. If I need more power from my GPU I'll upgrade the card.

Motherboard: ASRock Z77 Pro3 ATX LGA1155 Motherboard
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  1. Here are some options:

    Rosewill CAPSTONE Series CAPSTONE-650-M 650W ATX12V v2.31 & EPS12V v2.92 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular $109
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817182263

    CORSAIR Enthusiast Series TX650M 650W ATX12V v2.31 / EPS12V v2.92 80 PLUS BRONZE Certified Semi Modular $109
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139031

    Seasonic SS-560KM Active PFC F3, 560W ATX12V V2.3/EPS 12V V2.91, 80Plus Gold Certified, Modular Power $129
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817151098
  2. That 3770k might max out at 150w at a nice overclock. The 7870 might run a good 240 or so while the other stuff in a basic single HDD and 2dimm set of ram with a CDRom drive might run 60-100w. I wouldn't imagine you need more than 500 but it's always best to go with something good. Avenseth has made some nice recommendations but I just want to throw my vote out for the Corsair. That's a very nice PSU. I have always had the best luck with Corsair and Antec power supplies so getting yourself a 650w for that price with a decent Bronze rating is a good deal. Also you'll have plenty of overhead for a better card later on after the 7870 ends its life.
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