My first stumble block was I needed to install setuptools so I could install easy install, but once I had this in place it was only a matter of minutes before I had the lights working.
So what do you need? Well neopixels rgb with a good power supply (5v 5a) is what I'm using. Power lead to power the power converter/supply some wire and a sn74ahct125n chip.
Now I needed something a bit more secure so wires didn't accidentally drop out so with Tony's great instructions I turned the breadboard diagram into a PCB board and got my friends at Ragworm to make me up a board (which are costly for the odd one boards). Ok I could have gone abroad but wanted to ensure I had it in time for Xmas.
After soldering up the bits and plugging into the gpio, I setup the neopixels and ran the strand test.py demo. It needed a tweak to tell it I was running 160 neopixels (which might be less when it's finally on the tree) but found it worked.
I have added some videos of it onto my YouTube page to show it working.
Next on my list is to turn the brightness down and make them glow Christmassy colours.