Hey guys I need help finding a system for a small stand alone office. One of the main things is that the cameras must be able to record audio. Most if not all the camera's will be within 50 ft and wiring will not be an issue so simple kits would be awesome. I'm looking for more affordability than functionality so anything around the $500 price range would be great but I'm more than open to spending more if need be. I'm fairly unfamiliar with good and bad brands and which cameras have built in mic so any suggestions would be great.