Ooh, cool! Have you considered letting her make some movies of you and your husband? Talk about a unique perspective... I know she's a bit young at the moment, but perhaps in a few years... Just make certain to find any caches of material suitable for blackmail when she's a teenager. ;)

Here's hoping you find a way to get some video of her without her noticing too much. If your camera has a remote, that would be ideal for stashing it out of sight but able to get a good view (all of which I'm pretty sure you've already considered, but I have a bad habit of stating/suggesting the obvious).