However, light setups in a scene are stationary, they will not move relative to the stage if you change your camera position.  It sounds to me like you just want a guide light attached to your camera and move whenever you change camera position and angle.  Not very realistic in terms of natural lighting, unidirectional.  Now, your best alternative would be to set up your lighting according to your scene, attach a 'spot' light to your camera but change the diffuse and specular chips in the MAT Room to black.  With this arrangement, you can light your preview and render without adding any additional light to the scene.

Edit:  Glad to see that works for you.