I have a Leaf River IR7SS that records sound with video. It is a bit pricey, about $275, but I'm telling you, audio adds a whole 'nother dimension. I really like it. There are some of the Stealthcams that record audio as well but I'm not sure which ones. Unless I don't know of them, I don't think you can get any unit that does audio for less than $200. The only thing negative I will say about my Leaf River is the IR pics leave something to be desired but I am going to purchase a Uway flash extender for it and see if that helps with the night-time vids and pics. Good luck!
Blessings.....Pastorjim