Anyone recommend a backup body for weddings? I’m shooting with a D300, and am debating between a 2nd hand D70 or perhaps a 2nd hand D2H. The D2H seems to go for about €350 on ebay, and seems a perfect compliment to the D300, except for the 4mp limit. Is 4mp too small? Would I be better off saving the money and trying to get a D70? And will the D70 autofocus on the older D series Nikon lenses that I have?