I like the other things FXAA does, such as getting rid of the blue tint and toning down the day-glo greens of the stock textures, it also does a nice job of sharpening which helps to make things look a little more 3D. But I think SMAA may do a better job with distant shimmers. I have an ATI card.
Set them up in JSGME, switch 'em back and forth, then they are super easy to install.
+1. I'm now using SMAA with my ATI card, and I very much like how it fixes jaggies.
For those of you looking for an easy way to try out any of these FXAA and SMAA options, check out JSGME FXAA and SMAA utils
to easily do what Bandy suggests above.