I heard you will need a 400W psu with atleast 12V-17A for running 6600gt properly but people have managed to run on lower PSUs as well. 
VIVO got both video in and video out (comes in handy if you want to record your tv/console programs)
Golden sample edition is factory overclocked so you wont need to over clock it.
NVIDIA GeForce 6600GT Roundup. Round 1: PCI-E
that review is for pcie versions but should give you an idea.
Good luck with the card.

VIVO got both video in and video out (comes in handy if you want to record your tv/console programs)
Golden sample edition is factory overclocked so you wont need to over clock it.

NVIDIA GeForce 6600GT Roundup. Round 1: PCI-E
that review is for pcie versions but should give you an idea.
Good luck with the card.