The only thing I see is that you won't be able to use the USB 3.0, other than that you are good. I have a lot of those components and they work perfectly except for the USB 3.0.
Also, I don't know how much the vid card is, but the 7*** series from AMD is coming out now and assuming netkas and a few others are still interested in this stuff, they'll probably make the new cards work if Apple adopts them (which they probably will but who knows when.)
If you don't need the graphics then you can just run the grfx that come with your processor and wait on the new cards from AMD.
Also, I recommend a 750W power supply, Antec is my choice. The old advice that a good supply is worth the money is true, and that extra headroom will come in handy should you decide to over clock, add more drives and bus powered devices. I'd say a 1000W supply is overkill, but a 750 is right.