Running dedicated AC where do I start PleaseHelp

Hi Friends ! I plan to build a Stereo/HT setup in a new(old) Living room . I will be installing in walls for HT etc and still using my "Monster" tube stereo. I also have read a lot suggesting dedicated ac outlets. So far my plans are to get Albert Porters Croyed Hubbells for The Plasma, Two tube AMPS and one for the front end equiptment which will also include a big HT receiver and run these on different Breakers. Any suggestions on BX cable, breakers , Do I need a sub panel and why etc. etc. would be appreciated. Any other suggestions for setting up this room would also be appreciated as I don't want to overlook the obvious. Thanks for your Time!