LuMan, not FPS only - its understandable that they qualify but really.. any really demanding game is fine.
Havent played Earth 2140 but I can see how a "starcraft clone" could require a 060.
TFX was barely playable on 060 but that was mostly due to poor optimization.
It would be nice to see how good a 060 only driving game could be for example.
Maybe something that uses heavy interpolated voxels..