The shot from the Sears (I won't call it Willis) Tower turned out well for being behind glass.
I've heard there is a mythical photog that sometimes camps by the bean and chases off other serious-looking people with nice gear. Did you see the beast?
I'll be in Chicago for the first time this coming week and hope I can get some shots worthy to share as well.
You can get that shot by going to the Lakeshore drive bridge, near Navy Pier. Beware though - it's very shaky with cars passing by. I had my tripod, but i'm not sure if it helped or hurt.