Well, im building a new desktop. Specs-
12GB of 14400/1800mhz ram,
Intel i7 950 processor,
Rampage 3 motherboard
and two 6870 video cards.
Now, I was told I will need a 1k watt PSU. I am currently stationed in South Korea, and 1k watt power supplys go for about 250 dollars US here. Pretty pricey... Now for my question
I have  Power supply units, a 400w, and a 700 watt... Is it possible to use BOTH, one powering my motherboard, and the smaller one powering my drives, to achieve the needed power? my Computer case is a GMC h-100 Poong and has room for 2 power supplys, with adequate vents.
Thanks for your guys suggestions, and input!