Its great that MAYA is comming to the Mac, it's something that I wanted for a long time. At work we use NT, SUN, and Mac. Our most productive machines are the Macs(G4s), they do Commotion, After Effects, Photoshop, Illustrator, and ElectricImage very quickly and effortlessly. Our 450MHz G4s run considerably faster than our Gigahert Pentiums.
By new years, Dual and Quad processor Macs are comming out, and since OSX is UNIX based the apps will take advantage of multi processing without additional programming. I'm excited that we decided to buy 4xcopies of MAYA and 2xnew Dual G4s.
For many years Apple has been criticized, but honestly, the biggest hardware and OS improvements in the past three years were made by Apple. To some people it's easier to criticize something than learn it, I love working with OSes, they all have certain things they do expetionally well.
SUN is an excelleny server. (It hardly, if never, acts up)
NT and IRIX are good for running one maybe two serious applications. (Once you use more, the OSes start showing limitations)
Mac is great at running multiple applications, they all seem to work as one program. (Learn it and see)
OSX is aimed to be a UNIX with the operator advantages of the MacOS. (Checkout apple.com and click on the OSX tab)