Re: Drivers... True.  You'd think it's just plug-and-play and usually it is.  I think I was just aggrivated moreso by the fact that two of my cards are indeed unstable pieces of crap and are going to RMA-land rather than the drivers themselves being horrid (though I've had much better luck with Nvidia FWIW). 

True - was thinking the same with regards to Kepler.  I mean, I could sell one of the cards now and maybe buy one more 5970 but A. I don't know what the 7990 will do yet.  B. how much it'd cost.  and C. Kepler may very well beat or at least make Nvidia slightly more efficient to do mining with.

It's moot atm as right now I have roughly an equal # of cards to rigs needed (albeit not the proper cooling for every system).  To move more offsite I'd need another rig.  At least I know power and cooling there though is not an issue.  Dissapating 2+ KW just fine so far.