But the AVRStudioX debugging with the Dragon is an incredibly sweet deal. Long ago and far away I designed a hardware emulator for the Z-80 and Z-8000 at a cost of roughly a zillion dollars. That didn't have anything on what is available today for free. Yea progress!
I take it from your handle that you are a Sherlock Holmes fan :-)
I have been getting the old british SH TV series off youtube lately....good stuff. :-)