Quickbooks would be ok for a smaller family owned busines. It's easy to learn and there is a lot of online help. For a medium sized business, it depends upon what type of business - service or manufacturing...Microsoft Dynamics GP or SL would be good software to look in to.
This software allows for multiple users and is good for a company that is growing. A large business can mean so much - do you mean large like General Electric? Large like Comcast?
Most companies like that would use Hyperion or Oracle GL.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.