Hi. I want to be able to play this game in 2560x1440. My current rig looks like: core i7 860 @ 4x2.8GHz 8gb ram, 1600mhz GeForce 210 Running Ubuntu 11.10, x64. If I try to play now, I get extreme lag, even in the title screen. What kind of video card do I need? I'm looking for the cheapest option with good energy saving capabilities.