Get 970x for GPU if you can afford it.Personally I'd go with good psu brand like seasonic and you want a non-modular psu,check this out:http://www.amazon.com/Standard-supply-Seasonic-SS-500ES-BRONZE/dp/B00652AYGC/ref=sr_1_5?s=pc&ie=UTF8&qid=1430980094&sr=1-5&keywords=seasonic+500w
get this if you want a modular psu:http://www.amazon.com/SeaSonic-550-Watt-CrossFire-Certified-SSR-550RM/dp/B00918MEZG/ref=sr_1_1?s=electronics&ie=UTF8&qid=1430980375&sr=1-1&keywords=seasonic+500w
even thoough its quite expensive,but seasonic's components are really good