Thanks for the reply - can you tell me more about the use of RDCman - is that something you loaded ON the SP3 or did you have to load it onto the server? Once loaded on the SP3 - was it complicated to configure etc? I only briefly reviewed it's use - may have even downloaded it - however had no luck in connecting from what I recall.
Install RDCMan 2.2 on your SP3 only:
http://www.microsoft.com/en-us/download/details.aspx?id=21101
There are some specific instructions earlier in this thread but feel free to ask if you have more questions.
BTW, Metro apps on the remote machine won't work when connecting via RDCMan, in my experience.