OK, it's beginning to become clear. My initial gadgets & gizmos should arrive today, so I'll start tinkering, and I'm sure more clarity will come.
Thanks for the quick responses, and for your patience. This is so far the best HA forum I've found anywhere!
Oh, @msebbe @AWI , I have a FastLED version with a decent web API and web interface available here: http://forum.mysensors.org/topic/2705/fastled-neopixel-ws2811-node-from-arduino-code-to-web-page-with-api
It's working pretty damn well Still working on my front end interface, since I'm not a designer (well, I am a 3d cad designer, not web dev).
Oh, and if you knew my controller's name, you could communicate with it via TOR. Just like corporate solutions, I can communicate and control my gateway from anywhere in the world!