you're going to wet yourself when you fire up HSFX 6 / UP3 on that for the first time.
throw this at it the next time you have a bit of spare cash afterwards,
http://www.ebuyer.co...-426018336-1848
and you be able to play clod maxed out as well as DCS and RoF to the max without any issues (well your be able to play Clod maxed out with its inerrant issues!)
I don't know much about that one yet, but since you can overclock the i5 2500k to buggery to @4Ghz on air easily anyway........
I'll have a read around later.
Not sure if i would stick with 550w, doesn't give you any real possibility of sli in the future,
found this,
http://www.ebuyer.co...-rc-502-kwa1-jp
Bit cheaper and 650w.
However coolermaster cases are awesome, its what i use.
The rest looks great.