Just got this to replace my 6990 as I was not satisfied with how it ran at 2560x1600.
The 7990 is a step in the right direction. Got a very good deal on the Sapphire one
So far I'm happy, and i've got it now under water doing 50 instead of the 85 under load as before on stock cooler.
Added you to the list mate on the 1st page Hope you don't mind