Writing for a visual medium

Over the course of the past two assignments I've realized the intricacies involved with combining voice over narration, natural sounds and interview sound bites with the images I shot.  Its instinctive to tell the story for me, but I'm not accustomed quite yet to marrying voice overs with pictures to create solid journalistic pieces.  I encountered this problem mainly when I came back to the lab and began editing.  I knew exactly what I wanted the story to be, I just needed to figure out the best way to allow the components of the story to work together without competing.  For example, I debated for awhile whether to allow my interview subject to set the scene for the story or to include the information she gave me as part of my voice over.  I also found out during the past assignments that I need to learn how to better anticipate my shots.  In high school I frequently prepared shot lists, and I feel like I would have been more efficient if I had for the last assignment in particular.  I especially need to learn to be more conscious of what shots I'm actually filming.  I was certain I had at least 15 other usable shots on film before I started editing, only to find the shots were not usable or I never actually got the shot.  All in all, I think I have learned the value of planning and thinking ahead.  If I had better anticipated exactly what I would need, I could have better managed my time and shots to get only exactly what I needed (and probably had a much more solid video as a result).