Hi, I have been doing a lot of research on camera systems and i am a little overwhelmed. At first i was going to do a cheap dvr system then i decided i wanted to do an nvr with a seperate poe switch. I was looking at the reolink 4 camera system https://www.amazon.com/Reolink-Surveillance-Weatherproof-Security-RLK8-410B2D2/dp/B01AHXEHSU/ref=pd_lpo_vtph_421_tr_t_2?_encoding=UTF8&refRID=V5JTF9KZHJMB3PW7JACK&th=1. The problem i am finding is that all of these non commercial camera systems all have mixed reviews. Here is what i want. I want good night vision, the ability for the nvr to prerecord events for 20 seconds or more the ability to handle 8 cameras and i want it to be reliable. i was originally looking at a budget of $200 but i see that that is probebly not going to happen with an nvr system. $400 is the most i would like to spend. Please dont say what is your personal security worth.