I will add 2 new XP systems tonight. Mine is 2800+, son's first is 3000+. Some time this week, I will run to the store for an additional ethernet and put a 3rd system on, XP 3200+. That one sits in son's room, so he will probably turn off at night.
I just wanted to make sure you are aware, in case you didn't know, that you can run multiple computers under the same name