I was thinking a photograph of a nice Bible would be a good user picture. I might take a picture of one of my nice Bibles and play with it some day. Or I might find something on the web that would be good -- I haven't looked yet.
I'm thinking something artistic like the picture of the eyeglasses that smerp uses. That is an awesome user picture. Excellent lighting and all that stuff.
If anyone has suggestions before I get around to taking a simple picture myself, feel free to comment.