Ya, I
PM'ed you this, but Inner Circle is good for more competitive-tourney focused gaming, and often play in Glen Burnie. If you like tournies, they represent at a lot of the ones around here, all the way up to mikhaila's store

. Great guys.
I also recommend Ineptus Astartes near Columbia for a more laid-back group that does a lot of cool modelling projects and generally has a good time with casual gaming.
Check 'em both out or just ask at the
GWs in the area (Inner Circle at many of them, Ineptus Astartes probably only at the Columbia store).