for games, I’ve found that the 80.40 drivers are the best, in terms of fps and smoothness.
There are some minor shadow glitches with it in Battlefield2, but it does provide the best frame rates. My 3dmark05 scores with it were 5200+, which is just a bit lower than the drivers I were using before, but those drivers gave me crappy fps.
With my 9300 i have to turn the shawows off cause they are so bad. Wehn you shadow is 2,m away it kinda ruins...