My mac is pretty nice-I've been using poser on it for 3 years now. I hope to upgrade the ram in the next month or so, but otherwise, it's been a breath of fresh air. No noisy cheap hardware. No blue screens. And no having to fix broken OS. I restart every 2 or 3 weeks, usually because of a security patch. I spend very little time "configuring" the computer or fixing problems. I would rather spend a little more money for freedom of having to fix windows every month or two.

As for poser stuff. Your old stuff will work, as long as it's not from DAZ...in which  case, you just have to redownload the Mac version (or download something to let you run windows stuff from your mac...i.e. darwine).

If you are using P6 or older, you will need something to convert the odd package that only sends .RSRs instead of png thumbnails. I used a freebie for that, until P7 SR 3 came out (which I only used for thumbnails, until recently! :P )

I don't care about all those windows only programs, but with darwine, they would probably run just as well on my mac, as long as they aren't using openGL or directX, which I doubt they do. Some of the middle end applications would probably not work that way, though, since they probably would require 3d acceleration.