Question bout Power supply and Graphic Cards

[xxXplicitP]

I am planning to buy this Graphic Card

http://www.bestbuy.com/site/olspage.jsp?skuId=8983736&type=product&id=1218005635281

and it says in System Requirements it needs "425W Power supply" Would it even run if I only have 300W?

I asked Geek Squad online and they told me it wouldn't even run.

Also for Power supplies If I were to upgrade from the 300W. Will any work as long as it fits in the tower and has the same amount of Pins?

[iamyourmom]

Of course, you will have to upgrade your power supply. and yes, any would work just as long it fits the case and have the same amount of pins. i would suggest up to 500W or 750W, for that would be enough for further upgrades

[mcxeb52!]

425W PCI Express®-compliant system power supply with a combined 12V current rating of 28A or more

Remember, to check out that the 12 V rail has at least 28A. The 12V rail amperage is important. You could just get by with a 430W PSU with at least 28A on 12V rail and you'll be happy, given that you don't intend to upgrade anything else anytime soon