I just purchased the 4mm DS-2CD2542FWD-IS Hikvision to install for my front door. I really like their mini profile. Last week, I purchased these two no-name cameras from backstreet-surveillance to try-out their dark-colored cameras. I hope these cameras are great, as I've been searching for some non-white cameras for awhile. http://www.backstreet-surveillance....eras-1/ultra-hd-vandal-dome-camera-black.html http://www.backstreet-surveillance....-1/ultra-hd-vandal-dome-zoom-camera-gray.html These last two are 4mp, one is a fixed 3.6mm and the other is manual varifocal 2.8mm-12mm. Next-up, I need to get a PTZ for my gate. I am not sure if I am buying a Hikvision or Dahua camera. So, now...I need to get an NVR, but am not sure if I should buy a Hikvision, a Dahua, or one from backstreet-surveillance.com. I will likely have a combination of 2mp, 3mp, and 4mp cameras. Help! I’m overwhelmed. Thanks everyone.