I just got finished running a 20a breaker to my room because the idiot who wired the house, wired the whole 2nd floor on 1 15a breaker (3 bdr and a bathroom). I had to get off the circuit to run my ballast. Nothing like putting 5 holes in ur walls on all floors and using a digital inspection cam to run some 12/3. Dude im beat. Run your own line to a dedicated breaker, you wont be disappointed!
Now.....where did i put my joint compound mud?:-/