Diverging slightly, what is the megapixels range for the slightly above average railfan photographer? Thinking of best for use on a web site and perhaps occasionally printing off something. But probably the biggest being 8 inches by ten inches, or slightly larger? I have been told 8MP would suit most folks? NOT trying to start any huge debate here. A few years ago, 8MP was big time stuff, now I am seeing numbers twice that and it has me wondering if there is any real gain?