What graphics card would you recommend

INTEL CORE 2 DUO E7500 2.93GHz
G31M-ES2l rev 1.x
4gb Ram
Geforce 9400gt (current graphics card)
1tb HDD
DVD writer
Samsung 40inch smart tv 1080p

I am wanting to play GTA4 with highest settings, is this possible with my machine if I upgrade the graphics card. I am looking to spend £120 but would also like to know what higher priced cards would be compatible. I have PCI express. I would also like to be able to play the new GTA5 when it comes out.

Thanks