HELP... good upgrades? first time buying graphic card

What Resolution are you playing on?, a Nice GTX 560 or 460 would be suitable. the 4100 s a stable system runner but not at all a Stable Full time gamer CPU. The GTX 460 or 560 will be about the best you get for the price. the 460 is around 140 if you look enough, and a 560 is about 189.99 avg.