I still think WinXp has much life in it xp does not 'NEED TO GO' as you state PCX. Since MS are going to support until 2014 Xp is still a valid O/S if users currently own the OEM for this. Hardware is another cost factor for some users as some do not need the newest fandangled hardware or O/s. This may or may not make it more difficult for you to support the client, though if you are knowledgable in the process Im sure you will find it easy enough.