For now I'm still using my eGo case as a survival kit, although I've been wondering this myself, as the time will come for me soon, also.
I'll probably hit Special Ops Equipment for some sort of small pouch that can go on my belt (as if I have anymore room there) that has the word "tactical" somewhere in the title or product description.
That probably wasn't much help at all. Sorry, it's late.
Edit: There ya go! What Baditude posted while I was babbling. That's awesome!