Hi i have a HP a6700z and it has a 300 watt psu in it. What kind of card can i get that will work good for some gaming? The CPU is a AMD phenom II x4 955bc. I have 5120GB DDR2 ram. Here is a link the PSU i have http://www.censuspc.com/300W-ATX0300D5WC-ATX-Power-Supp... I have a second hard drive hooked up and a second Cd drive and a card reader. If i really can't get a good card to put in it then what kind of PSU would you put in it that will fit? THANKS!