Everything looks good. As regards to the case and PSU, what are you looking for in a system? What is your budget? Are you going to overclock? Are you leaning towards the quiet side or the cooling side?
As DogSnake mentioned, Antec 1200 and CP-850 PSU is a great Case/PSU combo. Antec 1200 is known for its cooling and the CP-850 should run fine with a 5770 CF.
If you could wait until early next month, Antec is coming out with its new Dark Fleet series cases and the Lanboy Air.