The 19' All-In-One Security System with 4 Indoor/Outdoor High Resolution Video Surveillance Cameras is a space saving system that has the DVR built right into the monitor (which can be mounted to the wall).  Also has the option of blocking out specified areas from being recorded (to protect you and your employees privacy).

The 19' All-In-One Security System with 8 Indoor/Outdoor High Resolution Night Vision Video Surveillance Cameras (has the option of adding 4 more) comes complete with a built-in DVR LCD monitor that can be mounted to a wall.  Has multiple viewing options so you can watch several cameras at once or one at a time.