I might do that but there aren't good deals around for the 7850.. I'm just running on a 1366x768 screen so i don't need to get a better.. I mean sure it would be future proof then but its a price difference of about 70 bucks in my country. I will also get 2x4GB Corsair Vengeance DDR3 1600MHz, maybe unlock the 4th core and i should be ready for BF3... I hope i will get good frame rates(45+) on ultra with this res. But that is a good idea with the 7850 and for Christmas i might find a good offer for a 7870(that's my goal).
Anyway thanks for replying!