meh, like vern said just get the cheapest thing you can find (well look at warranties) galaxy has good cooling and oc's well so take a look at them also (their 8800gt doesn't look very nice though)
both are good PSU's, the PC Power & Cooling 610 is better (by only a little bit) but for some reason Newegg is selling the PC Power & Cooling 610 for really cheap $100 (cheaper than the Corsair 520hx), so pick that up instead