You need three more graphics cards - the motherboard you have can take 3-way SLI.
If you just build two systems and have a mobo and processor left over, I know a good home for them :-) (dying to play F1 2011, but don't have a system for it to run on, or a console).
Also, you won't build a killer system with what you have pictured. You need cases, RAM, PSU etc etc :-)
Interested to know what you do if you get to use the latest tech for projects.
