You've chosen a very big, and fairly expensive case as well, which unless your watercooling, or have a real urge to buy it, you could save alot of money going with a cheaper one. Infact, if you went with a mid-range mid-Tower ATX case you would probably have saved enough money to upgrade your GPU to a 570 or 6970
For a PSU I would recommend a XFX pro 750w as of all the psu's I have had over the years its was the best price and due to the fact it only has one rail rather than splitting the wattage for each device there is no loss in power at all.
+ you get a million sata and molex connectors
but if you can stretch an extra few ££ get the 850w
ps make sure you have a sturdy case as they are really heavy and mine bent my case (lol)