Your best bet is the D40-It's the only one of the bunch that synchronises flash on camera at 1/500 sec, (which is necessary for controlling the ambient light when using flash outdoors) the others synch at 1/200th, and as for the D90-who cares about video-if i want video, I purchase a camcorder ( if you need a sports car, you wouldn't by a 4-wheel drive, would you?) I personally still use a D50 that I bought new 4 years ago, it does everthing that I need-too many camera buyers get antsy about more pixels-you don't need more pixel, you need better quality pixels, and the more pixel sites you put on a certain sized sensor, the more noise you are going to get, because each pixel sensor site heats up to provide light for an image and if the gap between it and its neighbours is too small-it will effect 8 other sites around it and this travels round the whole sensor, causing Signal to ratio noise. regards, Ken
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