Re: eMachines T256 Upgrade
It has an 8x AGP slot in there for you to choose add on an aftermarket video card. I like the 6800 cards but the 6600GT is cheaper and can OC to 6800 speeds failry well.
I'm not sure what your power supply rating is, but a 350 watt would do fine for a 6600GT. I would consider upgrading in the future.
*Fact: Microsoft Window's Blue Screen of Death vs Computerforums.org's White Screen of Death. Which is worse?