Although wr6133 is right an i7 is not needed, it puts it into perspective when you realise that a pentium g can play bf3 with minimal problems. Get an i5 and put the money elsewhere perhaps for the ssd.
+1 ON THE 2500K
you can go better with the gpu and.psu on.that account.
If you must go cooler master then go silent.pro. The only good line from them
Otherwise I would recommend a seasonic, corsair or antech 600w or better.