Crossover for MacOSX (Via D’Arcy Norman Dot Net.) D’Arcy describes (and points us to) an application for running Windows applications on OS X, without installing Windows (via Boot Camp or Parallels).
UPDATE: Parallels wins (Via D’Arcy Norman Dot Net.) Apparently, D’Arcy prefers Parallels after all. As he says, “only a relatively small subset of applications run under Crossover.”