Program for simple editing of MOV files I need a program for editing moves, specifically, only MOV files.
Only simple editing required - cropping, splitting, trimming, etc.
One requirement is that the program does not re-render the video file,
since such changes generally do not need this.

A good example would be QuickTime X trimming facility - you can trim 
a huge MOV file and it will save it in seconds, because it will not
render it again.
QuickTime Pro 7 is still around, and can do quite a bit to .mov container files natively. You can select, copy and paste video, extract streams, etc. They removed a TON of features from QuickTime X in the interest of making it prettier and more "user-friendly."