I use 1024x768x32 and 8x AF with no FSAA in all games; D3D or OGL. This is on a GF3Ti200 (225/450) and a 19inch monitor.
I have always found that I prefer high AF vs FSAA in anything other than static screen shots; being most especially true in hihg poly count game which are less affected by jaggies. FSAA has never been worth the performance hit to me, while I find the performance hit of 8xAF so be acceptable with my card. If I had a GF4 (non-MX) I would probably run 8XAF and 2X FSAA.