[taliesinb]

I've always thought there was a niche market for a complete, secure, self-hosted self-tracking solution, from keystrokes through to email, file system usage, and HTTP traffic.

If anyone knows of anything along these lines, I'd be interested to hear about it, but I suspect it doesn't exist. Probably the difficulty of doing cool things with the resulting data is one of the main reasons such a product doesn't exist.