I'm having trouble on deciding which video card to get for my PC (I have a HP Pavilion a612x; 512 MB RAM). The original graphics card that came with this computer was an Intel Extreme Graphics chipset that's integrated on the mainboard and sports 64 MB of shared video memory. My computer has two PCI slots which can be used for an added video card, and I am ready to upgrade. I am a devoted Sims fan and I hate the way that my game looks. Not to mention that it lags... a lot. Can you help me choose a video card? Here's a list.