Cisco 3560 or Cisco 3750 can be done. It depends on what you really want. If your network is alive. It may be hard to re-configure ip addresses of all servers. It should be the same. You then seperate vlan_server and vlan_user. Are you mapping all printers with thier name? If you're using ip addresses of printers then you're going to re-map them again(if vlan configured).