Looks like Antec is going to start making PSUs specfically with high end video cards in mind:
http://www.extremetech.com/article2/0,1558,1625764,00.asp?kc=ETRSS02129TX1K0000532
http://www.extremetech.com/article2/0,1558,1625764,00.asp?kc=ETRSS02129TX1K0000532