if you can put in a sub panel. run a #6Awg up through the wall. Home desprate sells Romex in a 6/2 or 6/3 configuration i believe. This would then tie into a two pole 50 amp breaker. You are going to want 240v in that room. Switch your lights to that voltage if you can. Without getting too technical, it will help split you ampreage over both phases, balancing and spreading the electrical load evenly. with all that equip you need dedicated circuits. You can add your total amperes, then divide that # by 15 or 20, depending on the amp rating of the breaker to be used, to figure out how many circuits needed. You reaaly might be able to gett away with adding 2 more circuits. I would go with 20amp, more flexability. anyway I hope that helps a little. If you need any more info or specifics let me know, I would be happy to help in any way I can.
Peace, Love and French Fries.