Ok, so ive decided to finally take the big jump from my ATI HD5870 to the GTX 680 as it gives the best performance jump. I currently own an ANTEC Earthwatts EA650W. I dont think it will be good enough for the 680 though. Can you people out there suggest a good and moderately priced PSU? My specs: ASUS P8Z68-VPRO/GEN3 i7-2600K@stock 8GB G-Skill Ripjaws memory Corsair H-100 CPU cooler Any help will be appreciated. Thnaks in advance.