Yes you are correct, you can't use 3D Vision and DX11 at the same time, until NVidia comes out with compatible cards. And no, there is no way to "hack" DX11 to work on Nvidia.
Other than that game looks great, DX11 Tessellation is huge! thats really exciting and makes a world of difference in environment. Been following this game since its development was leaked, it has nothing in common with Hellgate, its much more like the original STALKER:SoCH which was excellent.