I have been using ZoneMinder for a couple years now, and I've always had good experience with it.  For the cost (free!), you just can't beat the features - most commercial video surveillance solutions don't even come close.  Anyway, while it has always worked well, I was never quite satisfied with the web interface - so I have been working on a new one; something more modern and end-user friendly.

You can follow my development in the ZoneMinder forums, or you can download and use the new skin by checking out my git repo.

Please join in on the discussion - remember, ZoneMinder is The State of Linux Security DVR Software and it will only get better with your input!