@JSteinman , I always change the resolution of the photos that I post to no more than 1280 pixels wide. That insures that the photo will fill the width of the screen online. Any higher resolution than that will not show online. At that resolution I have nice looking photos that are as large and detailed as they can be and yet the file sizes run between 250k and 350k depending on how busy the photo is. The resolution of your photo is bigger than most computer screens can even show.
The high resolution is great for a starting image. It lets you zoom in and chop a piece out for a close up or detail shot. The large high res photos also would allow you to print a large detailed poster sized photo off of a printer.