GPU usage is right up there at the top.  Temps are fine.  I am on latest stable drivers, but I did try 12.8 as well.  I flashed to the GHZ BIOS, but am back on original.  I am now up to 590 khash, and my clocks are 965/1575.  At these clocks I would expect much more at -I 20.  This card still isn't as fast as the 7950.  I really think there is just something about this card.