Advice on installing dedicated outlets

I just purchased a new home and I am planning on having dedicated a/c lines installed. I will need three outlets to run my system, one for the amp, one for the preamp, and one for my power conditioner, in which my source components will be pluged in. DO I install three separate 20 amp lines, each with its own circut breaker, or three outlets all connected to one 20 amp breaker? If I run the three separate lines with each having their own breaker, can they share the same ground to prevent ground loops? Any knowledgeable advice is greatly appreciated. Also, can anyone recommend a licensed electrician in the New York/Long Island area who understands our special needs.