I installed on my iMac 27" a parallel 64-bit Windows7 Ultimate and the same on my Asus-laptop. I plan to run the same one Sygyt Overtone Analyser software I will buy on both computers - if it is OK for you ?
About the mic: I will test the Samson G TRACK , a large diaphragm USB condenser microphone. I hope I can report later for other interested readers about how it works.
Greetings, Frank K