If you want a game that works pretty well with the Nvidia 3D Vision system + a "virtual window" sort of feel (though, that's not really an accurate description if you want an in-game experience--what you really want is a game that, when moving along the translational axes with TrackIR, gives you a meaningful reflection of real world parallax), I would recommend trying a flight title like FSX. Plane cockpits can be pretty cool looking, because all of the instruments, pedals, stick, etc. that come out of the virutal cockpit can be "looked around" with TrackIR. It's really neat when combined with the Nvidia 3D Vision stuff.
Hope this helps.
