Great review of 5970 CFX: http://www.driverheaven.net/reviews....d=890&pageid=1
In regards to running 5970's in Crossfire x, the word 'overkill' immediately springs to mind - there really is absolutely no need for it right now, unless you need to play Crysis Warhead at Enthusiast settings on your 30 inch screen at the native resolution. This is the first time we have seen this title running like butter and it shows just how poorly put together the game was when it was released. Sure, its pretty, but it shouldn't need a dual 5970 configuration to run well with the eye candy maxed, even at 2560x1600.
And they suggested a new 'revision' to the card: