With all the positive comments and my own research, I'm leaning towards getting a 1Ds mark 1 as my second body. I may still jump at a 1D if I see one at a crazy low price. That leads me to a final question, what are the average price for these 2 models? My research has shown a scattershot of prices. I know shutter count and condition affect the price, but by how much on average? How much should be knocked off if the seller doesn't know the shutter count? How much does accessories like extra batteries add to the price? Looking to get a second body to be more rough with, so would like to go as cheap as possible. So a body with a high amount of 'mileage' isn't out of the question. Any ideas?