i recently bought COD4 and it turns out my graphics card is a little out dated. im running a nvidia geforce 5 series. i got $100 worth of gift cards for bestbuy. and im not tryna drop more than about $150 outta pocket. what do yall recommend to run this game? a newer geforce or should i cross to ATI.....o and i need an AGP card. not PCI-E, or PCI