Where should this config array go?

[eluser]w1ntermut3[/eluser]
Could do. Is that the best way to do it? Where would I put that file? In an "includes" directory off my site root? How should it be named? Should it follow a particular structure?

Let me put it another way: if I was to give this project to YOU, where would you want to find a big array of global config-type stuff in order not to think "WTF?"