get an XFX 4770 since they have a longer warranty and come with a CF connector.
stick with that PSU.
and pay the extra £8 or whatever it is for the 1150mhz ram, since if you up the voltage to 1.85 which is still covered by EVP you can get to 1333mhz CL5-5-5-18 or 1.8v 1333mhz CL6-6-6-18.