What PSU do i should choose

Well i bough all the parts of My first build, but 2 users told me that it wasn't a good PSU for a gaming build, and they told me what PSU to buy, here the parts of my PC and the PSU that they told me.

PARTS:

-intel i5 4670K

-corsair vengeance 8gb 1600

-Mobo: Asus H87i-Plus

-Asus DirectCU II GTX 760 2GB OC

PSU that i bough: Cooler Master Extreme plus 2 625W

i want to know if this PSU ios good or not, the recommended by the users was a corsair CX500W, or any zsonic. what do you think, because i don't want to fry any of my stuf because a bad PSU.

Thanks.

If you already have it, you're fine. You can't overclock your CPU, anyway, because you got a locked board.

o.o si the thing that i have to change is the mobo?, and there's no problem with the PSU? that will kill something?, be cause i can change it for a Corsair CX500  for $4 more, the thing is that i don't know how to calculate the Watts that i need, considering all the components :S .

Do you think that 500W =430W will be enough or i stay with a 600 PSU?