Custom Armor/Entity render file

Hello All,

currently I'm trying to add a custom armour to my mod, i wish to add a custom render to this so that i can make certain parts of this appear to glow, I know how to do this from looking in the enderman render files and looking at the how the eyes are rendered, if you want to know this is done by using disabling the lighting in GL11 or something, I'll figure that out this later by inspecting this a bit more.

What I need to know is how to create a custom renderer and make my armour use it, i.e. what would it extend/implement and where do I call/reference it?

Thanks in advance