I was getting 10fps and then I worked out all my config.wtf files had let WoW atuodetect new settings. So each client put everything on Ultra with 16xAA and max multi-sampling.

Needles to say putting my slaves on Medium Settings and making everything use Trilinear except hte main gave me MUCH better FPS.

Still need to drop some stuffon the main though, not being able to turn shadows off at all is annoying.