Gaming PC - Need help

Solution
Now, there is no real need for an i7 - an i5 3570k would be fine, but if you have money to burn, the i7 can stay.
Alternatively, you could change to the 3570k and use the saved money to invest in a better GPU - this is what I'd recommend.

For the GPU, I'd go with a GTX 770 instead of a 670 - it performs much better, and is only slightly more expensive.

Change the PSU to an XFX 650W - you don't need 850W, and XFX are much better quality.

The rest looks alright to me :)
Now, there is no real need for an i7 - an i5 3570k would be fine, but if you have money to burn, the i7 can stay.
Alternatively, you could change to the 3570k and use the saved money to invest in a better GPU - this is what I'd recommend.

For the GPU, I'd go with a GTX 770 instead of a 670 - it performs much better, and is only slightly more expensive.

Change the PSU to an XFX 650W - you don't need 850W, and XFX are much better quality.

The rest looks alright to me :)
 
Solution