beginner, web based DMX control

I've posted in the networking category, but it may actually be better to ask here. I'm a bit confused on some basics in terms of knowing what to search for in order to achieve what I'm after.

Simply, I want to create a web app that can be viewed on mobile phones that through it's interface can turn a DMX device in my house on/off. I have a UNO, new ethernet shield and I will be getting a Super DMX shield too to hook up to the kit.

I'm baffled by pachube, web servers, chat servers webduinos. Being frank, I haven't got a clue on the basics here. I found this but I'm not sure if this is the best solution. I'm looking for the simplest and basic solution that won't scare me too much as I'm new to this.



Please don't cross post. It wastes time.