i have a better tip for you if you use maya, dump the mac and get a pc, build a pc actually, build one with a nvidia quadro 4 900 and dual athlons with 1.5 gig of ddr ram, a good system with these basic specs will cost around 2500 to 3000, 500 less than the mac and will run maya 100 times better, and with more options, i use maya 8 hours a day at work, trust me, i've used the mac on dual 1ghz machines, it doesn't even do better than our old pentuim 2s, and it lacks so many otptions from the pc or irix/linux versions, like cloth, alot of dynamics, fur, polygon tools, even 4.5 if you go on alias's site will tell you how much you lose by going on the mac, cause they want the mac version as a 2d graphic design tool, not a full 3d tool, which is why it sucks, i love mac, but if you are a maya guy, no way in hel would i buy a mac for maya, buy a mac for a million reasons, but if your in the biz for 3d, mac is no way to go, no plug ins work on the mac, none, shader support and mel support suck, you want more reasons, i can give you thousands. again, i love mac, but i'd never use maya on one over a pc.