Unfortunately there's no Poser for Linux, which is one of the few reasons I'm still using Windows. But as Peng found out Crossover Office (a Windows emulator for Linux, uses Wine but supports a wider range of apps) can run DAZ Studio. One can also run a whole Windows OS under Linux, with software like VMware, Win4Lin or Bochs. Even Poser will work then, but that requires an installation of a real Windows.