Since you're getting it shipped now, it should already be updated to SR 2.1. Check first before downloading and installing the updates. I heard some users had to reinstall because they tried updating what was already updated. 2.1 also got rid of the registration requirement, so you don't have to deal with that. Walk Designer is still broken. I haven't really used it, but heard it messes things up from time to time. One thing I haven't seen anybody mention is bump maps. Alot of times, when using a MAT pose, the bump isn't attached to the bump node. You'll have to attach it yourself. Make sure to also attach it to the gradient_bump instead of bump. You really have to work at it to get bumps looking right being connected to the bump node. Light sets-some lights sets P5 gets angry with. When you go to render (oh yeah-ALWAYS save before you render), it will get stuck on 'loading textures' and sit there for days if you let it. If that happens, kill P5, re-open your PZ3, save the light set back into the library, and use your newly saved light set. It'll be fine then. If you have Vicki 3, you're going to have to reinstall her to the base P5 runtime. She isn't going to work from a linked runtime. That's about all I can think of that's major. P5 really is good; people just bash it too much. It'll take some adjustment, but I think you'll like it. Good luck!