You dont need an i7, first of all. An i5 3570K will do more than enough.
With the money from downgrading an i7 - i5, get a GTX670 from either Gigabyte or MSI.
Never get a CoolerMaster PSU, they arent THAT reliable. (except for the Silent Pro series.) Get one from either XFX, Antec, Seasonic, Silverstone and the like.
You dont need 16GBs of RAM for gaming, unless you will be running apps that require alot of RAM. If not, 8GBs will suffice.
Id change that SSD to an M4 or Vertex 4 from Crucial and OCZ (respectively)
Since your probably going to get an 850W PSU from the brands above, you can SLI the 670s and (almost) get the performance of a 690.
Other than that, you did an OK job.
I like that Phantom case.