If I buy an HD camcorder, such as the JVC GZ-HD7, what else do I need to edit and play the movies in the best conditions? I guess I can edit on iMovie HD. But then, can I just burn the movies on a plain DVD to watch them on a High-Def flat-panel TV? Or do I need a blue-ray DVD writer? If I want to share the movies with my parents who only have a 720p TV, do I need to convert the movies to the lower resolution with iMovie?