im using a samsung one from amazon. Its a 4 channel dvr, but they have an 8 option (all with camera/hardware). the camera quality is good, and you can set it to the highest 1080. It has an option to watch the feed online but its not required since its all hard wired. just 2 wires per camera - 1 for the video, 1 for the power. you can adjust how sensitive each camera is to motion by selecting each camera feed, and clicking on a grid to select areas to ignore (like trees that constantly swing). You just need a monitor, everything else is provided. But if you do end up wanting the internet capability, you need to get a dongle (a receiver for wifi) and it connects to a usb port. It auto detects the light and will turn to night mode when its dark (IR lights encircle the camera lens) I think the dvr has 1 TB of internal memory, and you can add a hard drive to backup recorded video. And you can set any/all cameras to motion detection, or on a schedule, and once the dvr is full it will loop record, so it will erase the oldest files for the newest ones. setting it up was really easy, the 2 wires are together so its just one flat wire with 2 connections on each end. I ran the wires, popped the connections together, and plugged in the wires, the mouse that came with it, and monitor to the dvr and it was working. samsung sdh-B73040