Re: FIRST BUILD COMPONENTS
Agreed on both counts.
Wait for the new cards to come out, there's no sense buying the older cards now when the new ones are so close, even if you do end up getting the 4890's there probably will be a price drop when they release the new cards.
And the PSU you chose is overkill for your system, you'd be fine even with 750W. And when I say fine, I mean not just-making-it fine, I mean you-can-relax-you've-got-tons-of-power-left fine.
The only reason you'd need a 1000W psu (or higher) is if you went with a 3 card setup.
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