I just got the MCSE 2008 Books from Bookpool. What kind of lab setup do I need? I currently have VMWare 1.07 running, and I have 2k8, 2k3, XP Pro and Vista Virtual machines made. How many machines do I need? VMWare lets me run 5 at once, I think. I have 4GB ram for my desktop PC. Any suggestions? What do you guys run for your labs?