I did consider that. However, then the right camera does not follow suit as it is placed on the +x axis and views its side of the cube without looking through it. I wonder why they would do it one way with one camera and another with another camera.

(edit) I bet that's my mis-understanding. I assumed the 'side' camera was a 'right side' camera since it was placed on the +X axis. It probably defaults to a 'left side' camera that you have to look through the cube like the front cam. I had a right side picture of the physical object I'm modeling and placed it into the 'side' cam and the issue ensued. I bet if I took a left side pic of my object (it isn't symmetrical) and placed it into the 'side' image plane, it would work like it's supposed too.(/edit)