well you are buying  a 2 pack.   so  you could get a really good overkill evga for 194.99 with 20 off for later.


 http://www.rakuten.com/prod/evga-supernova-1300-g2-1300w-power-supply-110-v-ac-220-v-ac-input/249973555.html

more info here

https://bitcointalk.org/index.php?topic=591721.msg7639510#msg7639510