If you want to see money saving then cut out the overkill. Go without a aftermarket cooler. Go with 3gb DDR3 instead of 6gb, it will not hurt your FPS. If you must, install 3 more gb in a year, when prices have gone down. Get a regular case + PSU like this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16811129045
It will be more then sufficient for one i7+one 260. (one OEM ships i7 + GPU with 350w PSU)
Also, just get whatever x58 mobo is cheapest and still a reliable brand.
I think you can easily go below $900.