From Hello Luxx
This free camera rig for Cinema4D is a really handy little setup with which you can quickly and easily create some nice orbiting moves around your objects using very few animation tracks.
The hierarchy of nulls allows you to control the heading, pitch and bank around the pivot point and also from the camera axis, independent of each other. There is also control for the z-depth position of the camera so you can easily push in and pull out as you rotate around.
Download the rig at helloluxx.com