[EvanAnderson]

I'll throw out a word of support for both Geovision and Axis.

My Geovision experience is also not current either. I've got three Customers using their cameras in isolated VLANs w/o Internet access. Both hardware and software reliability have been very good. Some of the outdoor units are coming up on 7 years old and still working fine. I think, in total, there are around 300 (mostly indoor) cameras in all their systems combined.

I work at a site w/ >100 Axis cameras, also w/o Internet access. They're phenomenal devices-- built like tanks-- but very expensive. I particularly like that you get root on the cameras (which are running Linux). There are third-party applications that can run directly on the cameras.