The ANTVR Kit ($300) is a full HD display (1920 x 1080) headset that comes with its own transformable controller, which can be used as a gamepad, light saber, gun and joystick. The added bonus is it can be had for only $300. The headset provides you an IMAX-like experience with a 100-degree diagonal field of view and both 2D and 3D viewing. The internal 9-axis IMU provides a real-life gaming experience with head rotation and movement tracking. Their Kickstarter is going on right now so check it out.