My option's not listed.
I run all my games with anisotropic filtering enabled; they look like blurry crap otherwise. I just vary the level of it according to the level of FSAA I use. I also adjust the mipmap LOD slider for better detail; in DirectX, you need to disable the "User Mipmap" setting (at least that's what it's called in Rivatuner) - otherwise, the Mipmap LOD will just be set to the application's default preference. Here's some of the settings I use on my GF4 Ti4200; all are in 32-bit color; all settings are done in Rivatuner:
CounterStrike/Half Life: 1024x768
Mipmap LOD to -1.5
Anisotropic to Level 8, Quality Optimization
Quincunx FSAA with Texture Sharpening
Giants: Citizen Kabuto: 1024x768
Mipmap LOD to -0.5
Anisotropic to Level 4, Optimized to Level 2
Quincunx FSAA
Homeworld, Homeworld: Cataclysm: 1280x1024
Mipmap LOD to -3.0
Anisotropic to Level 8, Optimized to Level 8
FSAA off - antialiasing blurs the text too much.
I'd run this at 1600x1200 if my monitor supported a higher refresh rate at that resolution; it maxes out at 72Hz at that res, which is too low for me; I need 85Hz or higher.
DeRusto - check out a Nokia monitor sometime. I have one and I love it. It's an aperature grille, so you have those two little horizontal grey lines that are from the stabilizing wires used in AG monitors, but they're minor. The quality is great - a 17" monitor, supports 1280x1024@90Hz, and 1600x1200, but only at 72Hz. 447XPro is the model - I think it's actually a refurb too, as I think I only paid around $120 for it. 🙂
^Sniper^ - can't tell the difference between antialiased and normal images? Lucky you - I was one that once I saw FSAA in action, I couldn't be without it. I can even see the difference at 1280x1024 (and I'm not just talking about the change in framerates😉).