Having just moved away from the Baltimore area I can totally vouch for the thread's recommendation of G&M as a great crab cake place. A local institution and it is bigger than it looks; it will be crowded for lunches and dinners but they move people through pretty well. They also have a carry out/quick service counter on the property that may be a good option if you have a lot of people in your crew. Desserts rock there too, but I doubt you'll have room for them.
Man, this is killing me to think how close I lived to that place and now I can't get there for the first road playoff game! Have fun y'all.