Im running WoW Flawless with 0.9.49

tip on FPS is to lower all the settings and make the ATi drivers force AAx2, this makes the gamestill look very good, for me even a bit easier on the eyes and this keeps me on a steady 30+ FPS (with some drops to 25 in really croweded areas)

Running with ATi driver 8.40.4 btw which sadly still is the recommended version from ATi