Hey Deathhare,
I feel your pain as I went through this last year. "I have a silver hub, silver components...now why would I want a black lockring?"

Anyway, I found a silver DA lockring but can't remember where I got it from. I'll keep on searching my mind. I was never able to find a silver cog.

I know you probably are after a matching set, but the Surly lockrings are nice and can be had in silver...
http://www.universalcycles.com/searc...osearch=Search

I'll let you know if I can find out where I got my silver lockring.