Just my two-cents- I've rendered using HyperVue on Four machines- one Athlon 64 and three P-III's, and had no problems at all. I haven't tried using any Py scripts yet... On networks, things that can help greatly is making sure your network cards support 100Mb (or more) transfer rates AND ALSO that your cables (if you aren't wireless) support 100 Mb--- MANY DO NOT- unless you have recently purchased the latest Category 5 (e) Lan Cables. It makes a BIG speed difference. (Wireless is much slower also- unless you have the newest and most expensive wirelesss gear...)