I am looking for a piece of equipment that will record up to at least 20 tracks on my computer. I see may mixers on the website that have at least 20 XLR mic inputs. I want a board that will do this and simultaneously connect to my computer and record the tracks using software. What do I need in order to get this many inputs(XLR) and this much simulataneous recording? I am trying to avoid using Pro-Tools but if that is all that is available let me know.