Heath Cowart , a real estate photographer in Brevard, NC recently showed me an interesting example of the combined use of stills and video that I've not seen before. Heath used Final Cut Pro to do this but you can also do this with iMovie 09.
I think this technique is very effective. It allows a video narrative to be combined with one or more stills. Heath says he just discovered this technique and is still in the process of experimenting and refining it. I like it. It allows you to combine the strengths of video with the strengths of stills. You can minimized the amount of walk-through video yet still illustrate the features of the property while having video of the narrator (in this case Heath's wife the broker) talking about the features.
I don't know which video editors are capable of this technique other than iMovie and Final Cut Pro. Thanks Heath for sharing this technique with us!