I am building a robot that will be controlled remotely at first and primarily used for surveillance. I am looking for a descent camera that has a zoom feature (optical), is networkable (either native or through a video server), and has 2 way audio. It is not important (to a point) how big the camera is as the robot is fairly large and I will size the pan/tilt system to the camera. I have found several that would be great but they are through the roof expensive. Does anyone know of a camera or camera and video server combo that will fit these criteria in the $350 or under category.