Is Mac better or a Full fleaged Pc is better for Animation?

Hi guys!
I am Smooth Criminal. (U can call me Smoothie) I am presently doin 3Ds Max 6.0 and later will take Game Devolopment as a career. I presently hav a
P4 1.6, 512 SD RAM, Geforce 5600XT and a 40Gb Seagate hard disk. I want to know whether a Mac system tht is a Power Mac G5 running at 2.0 Ghz or the other one running at 2.5 Ghz with duel processors. But these systems cost 2000$ to 2500$ and the amt of RAM and the Graphic Card present in the sys is not satisfactory. Sure Mac works like butter when it comes to animation stuff But again I will hav to take out another 1.2k for the monitor. BUt I am also a Gamer. And, I was also thinking about a Intel P4 540 3.4 Ghz processer, Asus 915 MoBo, 1 Gb DDR RAM, a Geforce 6800 GT a Western Digital 160 Gb HDD, Along with these I can also get a good LCD monitor, Mouse, Keybooard, Cabinet etc etc. Wht do u ppl say I should prefer, Mac or a PC.
P.S: PC with even more better config?