You can save $100 or so by buying a Core i5-3570. The i7 is nice, but way overpowered for you since the K series, I'm pretty sure, is out of your league (it's designed for massive overclocking, which I'm assuming you don't know how to do based on this topic).
Mobo and video card and come down as well if you choose to use BadCompany's solid choices.
You can also save another $70 or so buying the OEM version of Windows 7 64-bit (
http://www.newegg.com/Product/Produc...82E16832116986)