I would also recommend tha
Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Editing › Need pointers for first time editing with two tapes › I would also recommend tha

I would also recommend that you use Adobe PE – it’s light years better than Pinnacle (learned by experience). I would suggest that you use straight cuts – not fades, etc. I would also recommend that you browse other video professional’s websites & watch their demos. It’s a great way to see what others are doing & decide what you like & don’t like for your own editing. For example, I’ve seen pix-in-pix done in a very professional manner, which is another option for your two-camera edit.
Above all, edit the video & watch it. If you don’t like it, your client probably won’t either. Play with it & have fun!