No, I hadn't, but that's an interesting idea. I wonder if it would fit.
Same with the old motherboard idea. There's a computer collecting dust in the garage, and although I had planned to use it for a project someday, who knows when the hell that will be, plus it's a P2 so it wouldn't be great performance-wise anyway.
Thanks for the ideas. If none of that works, I'll definitely be checking out Digikey.com.