I fell on a really good deal for a http://www.newegg.com/Product/Produc...82E16814121432 Asus 570gtx that I couldn't resist. I had my mind set on a asus 7850 but I couldn't find one in stock on newegg and amazon had a 2-4 week shipping policy on there's. Anyways I was wondering with a 2500k thats going to be overclocked of course and 8gigs of ram would a Corsair gold 650watt PSU be good enough of should I move up to a seasonic 750gold watt. I haven't messed with Nvidia in a long time so I don't have experience with a 5xx series.