Multiple terminal servers setup

I'm looking to replace my old (like really old 2k8 r2) terminal server with 3 new ones (win2k5). Instead of each department going to one server as it is now, I would like to break up the departments to a specific server. For example. HR and Fiscal go to server 1, C suites go to server 2, etc. How can this easily be achieved? Can I give them all the same virtual server name, group the servers together, and terminal knows which one to go to based on the users group or do I have to make 3 individual servers and tell each division to go to server1 or server2? I've thought about just grouping them together, having roaming profiles and allowing terminal to pick the server based on load but, I don't want to have to fight the terminal server vs their desktop computer when they are in the office. Not to mention the amount of storage needed for all of the profiles. Any help or suggestions would be appreciated.