leave the AA off or close to the minimum - but you can crank up the AF, the way it has been implemented by ATi, there is a minimal performance loss. Then depending on the frame rates you're getting - you may want to slowly work on increasing the AA.
I don't think Truform is supported by that many games - I know Serious Sam SE is one - It did look nicer on my R8500 that it did on my GF4 - application preference will probably suffice for that one :thumb: