Another thing that goes for NVidia cards (dunno if ATI has anything the likes of): Those of you who use NVidiaInspector instead of the default settings window, use 4xS AA (8xS is overkill on resolutions smaller than 2048). BTW, just so you all know, this type of AA is directx games ONLY!
EDIT: This AA type is less resource -intensive than the regular ones and looks tons better.