I have (well, my parents have really) a cat that looks a lot like that named Lightning, we call her Missy for short (has nothing to do with the actual name obviously). That name worked out well as she is now over 16 years old and still very frisky and energetic (why we named her Lightning in the first place).

I do like the computer lore naming scheme that PCA and others have going. If I got a new cat I would be tempted to name it nible or malloc.

-Mike