Oh yeah, for those of you who are anti-aliasing disbelievers, I made these two videos:
TERA Online without anti-aliasing
TERA Online with 32xS anti-aliasing
And some images: No AA here, FXAA here (notice the awful blurring), and SSAA here. Pictures don't really do the phenomenon justice, though; you really need to see the amazing reduction in shimmer and jitter in motion. I should really have moved around a little in those videos, but I was trying (and failing horribly) to make an attempt at having them be in the same place. I might re-do the videos tonight after I get off work.