Grappling hook gun -- problem moving player?

This is what I have managed to find so far towards getting a working solution, The part I can not figure out how to get working, is moving the player from point a to point be over a given time so that the player is moving to the raycast hit point.

.

 // Raycast up to 100 meters forward
 
 var GrapplingHitPoint;
 var smooth = 5.0;
 
 function Update()
 {
     if(Input.GetButtonDown("Fire1"))
     {
         FireGrapple();
     }
 }
 function FireGrapple () 
 {
     var hit : RaycastHit;
     if (Physics.Raycast (transform.position, Vector3.forward, hit, 100.0))
     {
         GrapplingHitPoint = hit.point;
         print("Hit Something");
     }
     Debug.DrawLine (Vector3.zero, Vector3 (1, 0, 0), Color.red);
 }
 
 //Pulls Me to the target position like a spring
 function GrappleMeToPoint() 
     {
     transform.position = Vector3.Lerp (transform.position, GrapplingHitPoint,Time.deltaTime * smooth);
     }