I don't wanna go too far off topic, but SIGGRAPH is really a special conference. Many outstanding computer science presentations, computer animation and a lot of other interesting things. I attended a course called "The Art of Story Telling" by some Hollywood script writer (just for the fun of it) and enjoyed a course by Stephen Burns, who masters the art of teaching Photoshop pretty well.
My personal highlight of the computer science part was a crowd simulation presented by a group of the university of Washington. I recommend to go on their website and watch the demo video. It's really cool. Those algorithms will be integrated in future video games by Electronic Arts.
To come back "on topic", here are two pics of Boston. I'm very happy with the first one, which was a hopeless shot against the sun which led to underexposed buildings. I guess, this is the first time I'm using HDRI the way it's supposed to be used. I know many people don't, but I like this little unreal look. I should do that more often.
I have some more street photographs as well, but I will keep hiding them for a future black & white series :-P