Hikvision. We used Luma for quite a while but they just got too expensive. Hikvision is locally available and they have a good rep who's very responsive. Not having OvrC kinda stinks but honestly, it never really bailed me out on NVR issues. It would be great if you could remote power cycle individual camera ports through OvrC, but you can't...which has led us to playing with a Synology server with their Surveillance package (and OvrC switch). So far, that's been pretty awesome, so we might use that in the future for certain deployments.