[Build Help]Need a build that can run battlefield 3 on high.

This will be my first build, always gotten handydowns or laptops. I want to be able to run Battlefield 3 on High with relatively high FPS.

How much money are you willing to spend ? Maybe about $500 to $600

Any components you already have? PC case, monitor and OS

Don't really know what else to write, I have never done this before so any help will be appreciated.