When shooting video of the family you will want to keep the camera as steady as possible. It makes for a difficult watch when a video has lots of hand shake! In the movies, steady cam rigs are used to steady the shot but these are bulky and expensive. To reduce the amount of unwanted camera shake at home for little or no money at all, put the cameras strap around your neck and push the camera away from you gently until the strap is no longer loose. In this postition you can hold the D-SLR out and shoot some great steady videos!
If you're interested in learning more about filmmaking with your D-SLR, head to the Nikon School website to find out about our workshop 'Getting Started with D-SLR Filmmaking'> http://bit.ly/1IxMWZM