The Nikon D700
I'm having a love affair with my new Nikon D700 because of its great low light capability. Above is a photo of Katherine boarding the Metro at the Dupont Circle station in Washington, DC. The station is quite dark. There has been no post processing of the photo to reduce noise. For all practical purposes there is none.
When I have taken the same photo before with other cameras, there was so much noise in the photo that it was barely usable.
I can also take photos inside the car with a fast enough shutter speed to avoid blurring.