http://www.emeraldintegrations.com/c...ra-system.html
I bought this one and installed it today. I have absolutely no experience with stuff like this, nor with running wires and found it very straight toward and easy. I had an issue feeding a cable at first, but realized I was feeding the wrong cable..
It's pricey, but I like it. My only issue is that it points down only, you can't see anything above