We are currently running XPe FR3/SP4 on Windows 2003 servers. Everything is pretty smooth. We have a new rather large project coming up which would be the perfect time for us to implement PS4.0. Unfortunately it's not that easy. We have to convince the pocket books, errr....management, that we need this. They let SA go a while back because of cost and now we have to renew to get to PS4.0. Big bucks. I feel it's very much worth it but my opinion is worth squat. I am trying to put together a presentation that will compare PROS and CONS of each version. Does anyone have anything that goes into this? Anything to get me started. Right now I am going thru training material but something actually comparing the 2 versions would be great. Any information or documentation would be much appreciated. Thanks, Michael Boggan XO Communications