Ah yes, the good old XP, considering today's standards it's a bit outdated. However, it can be patched and can be changed based on the users liking.
However, if you have a system that is DUAL-Core ( regardless of it being AMD or Intel ) and 2 GB of RAM than I suggest an upgrade to Win 7. It has a better support ( in a way ) and with depreciating support of XP there is hardly any choice . Aside from Vista, which I don't recommend. )
Thanks I had the opportunity to put Vista Home Premium , but than turned the offer down as I have already tested most of the Vista version and I'm unsatisfied. I won't use it till SP2 will be released Besides, like XP as it's mostly compatible with what Vista is compatible and still stable. Using small amount or resources. ( nothing I would be concerned off )