Career in Finance for BS(Computer Science) + 8 Year Experience?

Current Job: Technology Architect
Current Salary: 150-200K approx.
Experience: 8 years
Current Education: B.S.(Computer Science)
Family: Small kid and working wife :)
Ambition: Carve out a highly rewarding career for myself in Finance. By rewarding I mean annual income of atleast 1 million.

Please do not think of me as greddy. It is just that I want to progress along my career to greater hieghts.

I am not sure if this is the right move but my heart keeps telling me that I need to do this. Please guide me... here is my dilema.

I want to get into finance as it is the most highly rewarding industry. I also do have lot of interest in finance (not that I dont have interest in my current field). I want to reach the higher levels but do not know much about finance field. I need to guidance on if it is really as rewarding as I think.

What are the various fields in Finance that are most rewarding (like Fund management, etc etc) ?

What is required of me to achieve?