I am using max and vray alongwith compositing and post-production as well. As far as Max is concerned, if you wana run CAD applications, keep in mind that they will not run in mac UI till you have installed bootcamp. I have MAC Book Pro. I am using windows and MAC both on it. Problem is that, if I need to use MAx and vray, I have to swtich to WinXP. For the first time use, I faced a problem. We have 2 windows here, 32 bit and 64-bit. My Boss just simply gave me this MAC Book pro, as his son simply left it and baught a new Laptop so i was happy to get it without demand.
Problem here is with bootcamp. I installed my windows 64 on it and when i ran the bootcamp, it didnt work. I was starving to get drivers for mac but it is only possible through bootcamp. Keep in mind, if you wana get the best performance from mac, use 64-bit. but bootcamp doesnt support it. I have to switch back to windows 32-bit, installed at all fine but another problem. When i installed Adobe CS3 Master collection, to post-process my rendered animations, CS3 didnt run. another headache was to get another licensed copy for MAC based windows. so bear in mind. if you wana get performance from MAC, you cannot run xp-64. but if you wana enjoy life, you can get it. its really virus, problems etc but it has issues with adobe and other softwares. i have come back to forum after a long time so, may be my updates are old.