Need help with PSU

Hey im going to be doing my first ever gaming build and i dont know what psu I would need for the parts I have chose

CPU: i5 2500k - http://www.newegg.com/Product/Product.aspx?Item=N82E16819115072&cm_re=i5_2500k-_-19-115-072-_-Product

MoBo: ASRock Z68 Extreme 4 http://www.newegg.com/Product/Product.aspx?Item=N82E16813157250&Tpk=ASRock

GPU: MSI Twin Frozr II GTX 560ti http://www.newegg.com/Product/Product.aspx?Item=N82E16814127594&cm_re=twin_frozr_560_ti-_-14-127-594-_-Product

So yeah if anyone could suggest a good power supply or even the wattage I would need, and also is the GPU okay? Or could anyone suggest a better one at around the same price
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  1. Okay thanks for the reply, would i need more than 650W if i was to SLI the 560ti? And if so how long do you think a single 560ti will last before being outdated and needing SLI to keep up ...

    Also would http://www.newegg.com/Product/Product.aspx?Item=N82E16820145345&cm_re=corsair_vengeance_ddr3_1600-_-20-145-345-_-Product be good? Or could i manage with less RAM?
  2. Okay well thanks alot for the help
  3. Buy the biggest QUALITY PSU you can afford. Here's a link to help you decide.

    http://www.realhardtechx.com/index_archivos/Page2679.htm
  4. ram1009 said:
    Buy the biggest QUALITY PSU you can afford.

    I hope that what you said is not exactly what you mean.

    I can afford to put 1200 watt PSU's in all my computers - even the ones pulling 300 - 350 watts out of the PSU.

    That doesn't mean that I am going to.
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