I'm a teacher who wants to be able to run some typing software in my classroom. The trick is I want to be able to run it off of one computer so no matter what computer the students go to they will be able to continue with their account. I'm not exactly sure what I need to do in order to set this up. Since I'm a teacher I'm looking for the cheapest and easiest way to do this. All the computers have windows XP professional on them and I have a router and a switch. I also have a wireless hub with 4 ports on it to connect some of my computers. Can anybody help me out? Thanks.