Wow, that site is amazing! I love the pics of Ki'Baratan city from Nemesis. I wish there was a top-down pic, for some Google Maps-style fun. And what I'd give to have a walk around Area 5100!
I've read that they planned at one point for Nemesis to end with a huge fleet battle, not just the Enterprise vs. the Scimitar. Perhaps the Klingon Bird of Prey is a relic from that.