Someone Somewhere said:
You don't want to just say "any kind of psu", as there are some real pieces of crap out there. You want Antec, Seasonic, Corsair, OCZ, XFX, PCP&C, beQuiet, Enermax, or a few others. You may also want to go for Ivy Bridge and an H77 board as there is no point to Zseries chipsets if not OCing or SLI/CF.
500W is enough.
,I will find XFX psu,about the motherboard,ill also find it
Thank you for some advice,i dont know much about motherboard