Has anyone used the Xeoma software for CCTV? The one feature it has that SecuritySpy doesn't is PTZ follow tracking (which I grew to love when I was working in the CCTV industry a few years ago). It looks like they're got a simple HTTP POST/GET setup that can send triggers for common functions (and an incoming HTTP trigger), so integration with Indigo is easy enough.
Price-wise, it's pretty competitive with SecuritySpy, and seems to be closer to an enterprise system. I am just wondering if there's anyone already using it, and how you're integrating (if you are).