I'm not one of the blessed 12 animators :) I'm a hobbyist, I like to teak, and I like fast renders. I have both P4 and P5 and the only things I really like about P5 are the multipane views, python and the library clean-up. I rarely use P5 any more, (with a similar spec to yours; 2Ghz P4, 1Gb DDR) even with the latest service pack, for me, it's slow and clunky compared to p4. Given the choice now, I'd buy Pro Pack, and the library booster from the market place. This will give me everything I want with very little additional learing curve. P5 is all learning curve, and I have plenty of time but no inclination to learn. I don't want to learn I want to relax and have fun. Don't get me wrong, the "advances" of P5 are very nice, The material room is great, as is the cloth room. But I'm a "point 'n click" kind of guy. My attempts to get stuff working have frustrated me enough that I had to switch off the computer and walk away. If you're interested in learning, P5 is for you, if you just want to play, stick with P4 and get the Pro-Pack. later jb