Having used Poser 4 and 5 (and Vue, and etc) on both PC and Mac, I have to say this: I'm glad I saved up the money and got the Mac G5. The G4 Macs tend to fall short of the performance of a given PC unless you have a TON of RAM. OTOH, The dual G5 1.8 GHz box (the slowest dual setup you can get) with 1.25GB of RAM, beats the unholy catshit out of my PC, which is a Pentium 4m 2.4GHz w/ 1GB of RAM. Personally, I'd save up for the Mac. They hold their value longer, have a wider range of upgrade room, and just in my personal experience, they seriously give more bang for the buck than an equivalent P4 setup. Sure - a dual P4 w/HT box would beat the Mac, but I would've paid $2500 for it instead of the $1700 I paid for the dual G5... /P