Proper cooling for a noobie?

You can just turn the fan up on the video card using a program like rivatuner.

For the power supply, wattage isn't everything. What would be a price range for you on a psu?
 
Also on a different note, what is a sufficient power supply for a computer with this card, 4 gigs of RAM, 64 bit quad core CPU? 500w, 750w, 1000w?

GameXStream as listed above would be my first choice. Modular, I'd go with the 620HX.
 
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