I strongly agree with surveillance cameras. If you have nothing to hide, what possible objection could there be? I feel safer walking through 'rough' areas if I see cameras and I believe they serve a useful service with regard to safety and combating crime.
As for microchipping people, I'm not so sure. I'd like to know what information such chips would contain, for a start, and the purpose they would serve. I can see a possible use in the case of criminals, just as 'tags' attached to their legs are currently used. They would be rather more difficult to remove, although not impossible of course.
I could see a case for microchipping pedophiles, but in my view these people shouldn't be living in normal society anyway, it would probably be a horrible existence having a chip in you that's relaying your exact location to the authorites at every second of the day. Those that can't be rehabilited, in my view, should be in prison, not out in society at all. I agree about CCTV, I don't think they are a bad thing, but I disagree with how a fair portion of CCTV now is used to 'catch' people for petty things like parking in a bus lane, or going too fast down a hill. It's a good example of how a humble technology has been used for an entirely different agenda, and really besides the threat of punitive fines, it doesn't necessarily make bad drivers better drivers.