...I also have an old workstation (Besides the supped up Mactop I usually work on) at home that runs OS-9 (Which I hate, the last pre OS-X I liked was OS-8.6, but I digress) and I use that when I have a project that requires poser. Though to be quiet honest, I don't really use it that much since currently my career revolves around my traditional media and 2D digital art skills but I have an interest in 3D modeling and animation so I've been teaching myself slowly but surely the tools of the trade. The first application I used was an old copy of Ray Dream and Poser V1, then Carrara Studio (Prior to its slow response to OS-X) and Poser 4. Now I'm playing with lightwave and getting tips and tricks from a friend of mine who works teaching Lightwave to students at a local art school who is really close to convincing me that Poser is a 3D cheat- I got to tell you, I was once happy to have Poser as part of my toolbox for it made working with the human figure easy and fun, but since I haven't really used it in nearly a year, I'm starting to agree with my friend. That means one less customer now and in future for Curious Labs becuase once I turn my back on a product, I keep going... P.S. Far for me to tell you what is better, though from my experiences, I've had a lot less trouble working with OS-X (Thanks to the Unix shell it's way stable and far more flexible then any OS I've worked with though my experience is limited to win and mac) then I ever did with anything Mac used prior as an OS. You might want to give it a chance.