Im not necessalry looking for a quote, as I may not start a project like this, im just curiois what it would need?

(CAL AND OGL Are gaming leages, probalby the 2 most popular) www.caleague.com www.worldogl.com? maybe its org?..

I just want to know what it would all take (For example an Image Upload site needs an upload system... lol) and how much you think an average coder would charge