RDC or RDP depending on your preference coupled with Servers 2008 is now the quickest and most secure of connection. You no longer need to open port 3389 AND you do not need to do any port forwarding to get to other computers.
You open it and all your computers are listed. You can remote to any of them instantly whether you are local or remote. It is really quite remarkable.
Other than that, LMI is a great choice.
Since it is free, I wonder if programs such as AC could work something out with them so it is integrated with the program making it very easy to use.
