r00t wrote Wattage. More wattage doesn't equate to better quality and the Corsair CX series is decent, but you can generally get better quality for the same price. I should have mentioned in my first post, but the XFX unit I linked has a 5-year warranty, making it my only recommendation.

Just as an add on to this and a bit of general information, The XFX unit's must be registered with XFX within 30days otherwise the warranty is only three years.