Shotgun slug reloading

I am a new user and mistakenly posted this question on the handgun page, needless to say, I did not receive any responses. Does anyone know where I can get some information on reloading shotgun slugs. I found slugs for sales at Midway USA, although, I could not find any of the other components that I might need. I have MEC 650 and am wondering if it is compatible for this type of reloading if i buy the correct crimp die? I also need to know if standard AA shot hulls can be used? Any help will be greatly appreciated.