I usually play JKII at 1600x1200-no FSAA-8xAniso-set to best image quality in Direct 3D settings. Oh yeah, and all in-game options juiced!
I think it runs great! Can't give you actual framerates though, as I havn't ran it with FRAPS. It looks great though as far as I can tell. That's why I havn't bothered.
Thanks for your replies fellas, but seriously, did you have to be such asses about it. This is my first post on this forum, and if this is how all the new members are treated, I may not post again.