Where should this config array go?

[eluser]w1ntermut3[/eluser]
This is more of an academic question than anything, but anyhow: I've got an array of... stuff... page names, common fields, stuff like that... that's used by several controllers. The best place I can find to stick it is in MY_Controller, but having a config array in there seems... wrong. Maybe it's not, or maybe there's a better approach. Any suggestions?