I'm also looking for a DVR. There's plenty to choose from but very little with regards to reviews on them that I could find.
Based on features/price (under $1k), I'm currently leaning towards a Samsung SRD850D. Does anyone have any experience with these?
My scenario -
Remote cabin
Need one high resolution camera for front of house to capture details on any vehicles + at least 3 camera's to cover rest of house, maybe a PTZ. 4 seems too limiting, so looking at 8 camera unit DVR's.
Motion Detection
E-mail, specifically with pictures
Remote access
DDNS, NTP, and SMTP w/TLS