update:
here is the link to my power draw problem:
https://bitcointalk.org/index.php?topic=245642.0

thanks to forumers i can now sleep calmly knowing that the psu is enough as long as the cards are not majorly overclocked. now hashing at 650kh/s:  -5 power limit, 1000 core, 1500(6000) memory, stock voltages.

here is the screen of ambient temps:


and full on overclocked load: