Has anyone actually managed to get it running under OS X? It's basically the only reason I boot into Windows, and would like to eliminate that. Tried Crossover and steam works but Left 4 Dead just gives black screen. Haven't tried Fusion or Parallels yet, so figured I'd ask before wasting time with it. I know there's some Cider port, but it's just a cracked single player copy, and I want to play on Steam with my purchased copy.