Hello everyone,
Sins options/effects lets you configure up to 4x Anti-aliasing but doesn't let you control anistropic filtering. I have a high end system: quad-core cpu, 2gb ram, 750i nforce motherboard, 1 Nvidia 8800 GT.
Last night I forced Anistropic from "Application Controlled" to 4x and then up to 8x. I have to tell you that this ups the graphical quality of the game noticeably. The highly refined texture mapping reveals details that you don't notice before, an example for me being all the individual landing lights on the Kol's 4 hangar bay launch pad. It also seemed to smooth out the bloom effects.
If your system can handle it, and I recommend trying in incremental steps, up the Anistropic Filtering. I had no noticeable framerate difference but it probably will slow down low to mid range systems. You won't be disappointed!