well im just mentioning that i had a video card in a computer with a weak powersupply. and the gt220 was the cheapest thing i saw when i posted.
and yeah bestec power supplies are ultra weak sauce, if they fail they will take the motherboard with it. something like a raidmax or rosewill powersupply should be better than the bestec.
Saying that raidmax or Rosewill is better than a bestec is kind of like saying bottled water is wetter than tap water. I would recommend something from Corsair, Seasonic, Antec, PCP&C, or Enermax. Don't cheap out on the power supply! It's the only component that if it fails, can take out EVERY other component in your PC.