which service pack you like for windows Xp.

The same with me too

I use a mac pc. It's very good and I enjoy to use. Nevrtheless I wuold reply to your question. The best service pack for Windows Xp that i Know is service pack 2. It's very powerfull and have a lot of options... For example with service pack 2 you can install (with Virtual Pc) in your own Windows a Mac sistem too..! It you will need more simply contact me. Ettore