Depends on budget.
Not sure about the power supply, so i can`t say either way. The corsair`s are popular and i am well chuffed with mine. But, they are quite a bit more cost wise.
Are you going to use the stock cooler? You might want to get something a little better and quieter IMO. Especially if you plan to overclock. I have the same chip and it went straight to 3ghz no probs under a Noctua.
The Freezer pro is popular on here, and its the right money. Also the Tuniq tower, Scythe Ninja, Noctua HF12 And Thermalrights all come highly recommended.
Good choice on the hard drive. Its so quiet i though mine was broken.