I have a Windows 2000 AD network with a pile of Windows 2000 Terminal Servers that are pretty well identical. Could I plug in a 2008 R2 server running Remote Desktop Services and have that be a 'Terminal Server' for my existing network e.g. replace let's say current Terminal Server B running the same mix of apps as as it? What limitations would I face? What about at the client end - would I need to upgrade Remote Desktop client/dotnet, etc.?