Using different shutter speeds will produced a better feel to your footage when motion is involved.
Videomaker had a good article about making your footage appear more film like.
http://www.videomaker.com/article/12720/
also, read this article too
http://www.videomaker.com/article/13747/
As for sound. Depending on the project, I use wireless lapel mics. Audio Technica pro-88w is a good one for $150, and the microphone canon makes for the camera, 2591 B002, that fits right in to the mini shoe is good to.
