Give your head a shake - a gaming computer will not cost you that much. Ask Why_me or g-unit to build one for you. More like $2000. it's easy to spend other's money - unwisely I might add. The only thing ^ got right was the gpu - although if you do have that much money - go for the GTX690.
Also when asking for advice follow this:http://www.tomshardware.com/forum/261222-31-build-advice