I just switched to OS X (Leopard) a few weeks ago and I still need to run a few Windows applications that I still couldn’t find anything comparable in MAC OS. Many choices are available for me starting from Bootcamp that I need to reboot every time I want to run Windows applications. Or try either VMWare Fusion or Parallels Desktop to run a virtual machine so that I don’t need to restart computer every time I need to run Windows Application.