Specs for that system only list a 220 watt power supply. I don't think you're going to find a great card. Additionally, you're looking at a single core 1.8Ghz Intel Celeron G460 CPU. Even if you could get a decent card to work on that power supply, it'd be held back by the lack of processing power.
Sorry, but I wouldn't recommend any kind of gaming card for that system.
dam k thanks i guess im lookn at a whole well build i mean with this comp i also lag in low graphics games like cf or cs:9 do uthink i can do anything about this ? or should a graphics catd work? idk let me k kno :L