Rumor: Nikon Planning 1080p-Capable D400?

Whether it's wishful thinking, educated guessing or true leakage is unclear, but the photo nerds are now abuzz about a Nikon D400 follow-up to the D300 we love so much » 11/23/08 8:30pm 11/23/08 8:30pm, which would have that could potentially rival Canon's 1080p-shootin' . If that was all gibberish to you, don't think on it a moment further. But if…