There is no doubt that DSLR video is taking the world by storm. Canon 5D MkII video cameras were used exclusively to tape an episode of House. As great as the video is on these DSLR cameras and other handheld HD cameras, the built-in mics are often very lacking. My current video DSLR is a Nikon D5000 and while the video is AWESOME, the audio is very weak. Not only from a built-in mic standpoint, but also from an 11khz audio standpoint too. Unfortunately, there's no solution for the D5000 as it lacks an audio-in port. I have my finger on the trigger to upgrade to a Nikon D300s for video, but I'm holding off because Nikon is rumored to be releasing new models "soon". I also have a Canon HF10 HD camera that I use too. Although the mic on this camera is much better than the one on the D5000, very few built-in mics are considered to be "great". Therefore, I'm always looking for better ways to record audio.