I don't want to be accused of taking a dump on this thread or insulting the OP, so please don't take it that way ... but WTF?
2xHD5770s whup up on a single HD6850 pretty good, but for the sake of argument let's say 2xHD5770s with the PhII 965 are equal to an HD6850 on a new Core processor (I don't really think that would be the case but bear with me ...)
If gaming is the thing, here, and the OP already has the HD6850, adding a second HD6850 for $150 or so and he enters the budget-gaming stratosphere, even with the PhII 965.
He's blowing past the HD5970 and approaching GTX 580 territory. But here is where I think it gets really interesting ...
If he hasn't got the HD6850 yet (or can return it) he needs to snag a third HD5770 for around $110 before they all disappear. I'm thinking 3xHD5770 > 2xHD6850, and run cooler with a lower power envelop to boot.
In most cases I'd be all over a single card solution, but the HD5770 is one of 'those' special video cards that scale exceptionally well at 3x Crossfire.
And instead of *2 OCZ 128Gb SSD's* I would suggest 2x Samsung Spinpoint SATA 3Gb/s HDDs in RAID on your SATA 6Gb/s
Over and out - LOL