I use the 7600 GT KO (overclock) from EVGA. It has 256MB GDDR 3 video memory install in a PCI-E slot. I have an E-Machine (T6520). I upgraded to 2GB of RAM and the Power Supply. The power supply was the most important part. You are going to need a good one, if you do not have it. Some cards require power to be apply directly to them, so make sure that you get the right combination. Also the motherboard slot and video memory speed are a factor. Make sure you use the best posible combination, with your PC.

I use G3 with all the options, including smoke and have no problems at all. It is not the most advance graphics card on the market today, but it gets the job done, with a small budget.

Hope this helps...