"Is Amapi 6 any more stable then 5?" Eh, I'm not sure. I got v5 free with Carrara 1.1 and immediately upgraded to v6, so I never used v5 much (though I can tell you it's a damned piece better than A4, which is really buggy). A6 is a bit shaky, but save often and you'll be okay. The power and flexibility is worth any stability issues.:) "The C4D a few months ago is limited to I think 640 X 480 renders (?). But you can pay $99 and unlock that." Unfortunately, I wasn't able to afford the upgrade to CE+ when it was available. But even with the render size restriction, I love C4D. It's now locked in a vicious battle with Amapi 6 for the title of my favorite modeler. If the opportunity to get C4D 6 ever comes up again, I urge everyone to snatch it up! Great modeling, great rendering, bones, particles, etc. One hell of a deal. Now that C4D 9 is coming out, I'm hoping maybe we'll see C4D 7 on a coverdisc in the future... ;)