Nearly all the trailcams are doing video now, many of them with audio too. Bushnell, WGI, Moultrie, Stealthcam, and Scoutguard just to name a few. If your intersted in a homebrew video unit with audio, check out this guy. A master builder and a great guy to work with. http://www.jtswildlifecameras.com/

Blessings......Pastorjim