news wrote:

keylogger, webcam and some sort of 'net nanny' combined.

Oh yes...
A web-cam or even a 2nd web-cam if one already in use. Hidden in some
books or something !

I have used (on a non commercial basis) the following
http://www.visiongs.de/
They used to have a free version, don't know if it's still there, but it
can automatically upload a snap every few seconds to personal web space
or locally for viewing.

Here's one I took earlier of my "innocent" good lady !
http://gymratz.co.uk/pete/theif-cam.jpg

:¬)

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http://gymratz.co.uk/hot-seat.htm - Live web-cam! (sometimes)