Personally speaking, and to be brutally frank, I just don't see what the fuss is about. Having viewed 3D TV sets in retail stores,3D ain't all it's cracked up to be! As I see it, the best use of two cameras is to grab a shot of your subject from two completely different angles.
Zum Beispiel(er, that's "for example" in German, by the way!) If you're shooting a video of a steam locomotive passing through a station, take one camera yourself and set it up(best with a tripod) to shoot the loco on one platform and your wife, girlfriend or a friend, takes the other and shoots the same loco from the platform opposite you, and maybe a bit further along the platform. As the loco comes into the station, when it passes a predetermined point, you both start recording. When the train stops, or if it passes though without stopping, follow it through, panning left or right as it passes.
When it comes to editing, choose which angle will be on the main(native) video track and which will go on the PiP(Picture-in-Picture) track, then it's simply a matter of sliding the PiP track until you achieve synchronisation. When synch is achieved, mute the audio on the PiP track. Next step, on the PiP track, count in two or three(more if you want) seconds in from the start, then split the video. Count the same number of seconds back from the end and split there as well. These short bits at the beginning and end are to be animated for an effective - and impressive - entry and exit. If you've placed your PiP in the bottom-right corner of the main screen, click on "modify" size the PiP using the grid-lines as a guide, there is also a grid-line showing a "safe" zone, inside which, your PiP won't be cropped by the edge of your TV screen(this should be done before splitting start and end, sorry I forgot to mention that - oops!). On the animation effects, select an arrow with straight line(l-to-r, r-to-l, bottom-to-top, top-to-bottom). On the monitor screen in the programme there will be the start point for the animation, and the end point, plus two intermediate positions. These intermediate points can be used or discarded at your discretion, or you can add more if you need to do so. For the beginning few seconds, move to the end of the animation line part from the play, stop and frame-advance or backward buttons, you'll see a set of buttons with a diamond/left arrow and diamond/right arrow plus diamond/+ and diamond/- buttons, the latter to add or remove intermediate points. Using the diamond/right arrow moves to the end of the range for your effect, at this point, using your up/down/left/right keys or mouse to position, set the clip to where it should be, bottom-right of screen, moving back to start of sequence(diamond/left arrow) place the image at the point from where it is to enter(slide from bottom-left, top-left or top-right, even from bottom-right). If you want the PiP to enlarge to its predetermined size, at the corner of the Pip(any corner), pull into centre. Using the intermediates you can grow the image in stages(experiment) or, deleting intermediates, grow the image evenly from any point on the screen to end where and how large you want. Follow the process in reverse to make the end piece fly out of shot in whichever direction you choose, you can even make the image spin clockwise or anti-clockwise in our out, rotation settings should be set to at least 360 degrees for best effect. 360X8=2880 degrees for a rapid spin(suggested). When you've done this, produce your final clip and give it a title. This is all based on a hypothetical steam loco vid but should give an idea which can be applied elsewhere. sorry for the space taken to explain the process.