http://www.cuerecording.com/
Cue probably has one of the best selections of good drum rooms in the area. I interned there years ago before i was fulltime and before my move to FL.
Love the guys over there...
Bias is good yeah... but the drum rooms arent very live. The custom api consoles are super bitchin though.
There is a some good places up near baltimore as well... omega is really good from what i remember.
There is also a good studio down in waldorf where i grew up called nightsky studios.