The View Cube is a tool that permits the user to quickly change the viewing position by clicking on a portion of the cube as well as rotating the view by clicking and dragging the mouse around the cube.
The Steering Wheel is meant to provide basic view changes as well as a means to walk around and through a model. You simply click on the portion of the wheel you want to use and drag the mouse to perform the task. You can reposition the center of a view's rotation by choosing the center option and moving the little green "football" to the new location. Then the other features will observe that location as the center of activity. The Rewind feature permits you to go back to a previous viewing condition, like a little slide presentation.
They take a little getting used to. If you haven't seen them in action, take a look at Design Review if you have it, if not get a copy since it is readily available and get used to them now while you have a bit of time.
