Robert Barnett - what ever your opinions are about the K10D - your images are great! The photographer really knows how to use the instrument to capture the picture. I went through your entire set and they are stunning to say the least! San Francisco offers a lot of opportunities for great images.
I meant to comment on his pictures too. There are some really good shots there. None were bad, but some stand out for me. I like the moon shot with the dark sky, which could be used cropped for a logo or something similar. The candle light shot of the yellow flower is interesting. Never tried using a candle that way, but will now. The Marin Headlands Low Light shots were really good (nice colors). I like the moon shot with the Sigma (always like moon shots). And my wife especially liked the kitty (cute!).