I always thought it was strange how in that scene where Ben is patching up Sayid in the vets office, after Sayid tells Ben "now they know i'm after them" the camera pans to Ben who says with much inflection (of what emotion, I'm not sure) "Good."

I guess, in the light of recent shows, Ben is happy about this because the 'they' is Charles Widmore and Ben is finding pleasure in the knowledge that Charles knows someone is killing off his team.