I'm a big fan of FATE's movement via zones. Essentially the map consists of zones defined by line-of-sight, existing barriers, and ease of movement. Characters usually move at most only one zone a turn; they can strike anyone in their zone with a fist or hand weapon, poke people in adjacent zones with a polearm, and shoot up to five zones away with increasing range penalties.
This sort of map illustrates who's standing where and roughly how far each target is without having to count out squares/hexes/inches every round. Diaspora (my source for the explanation) extends the concept of zones to strategic combat, space combat, and social combat (i.e. where every party in a negotiation or verbal conflict is in relation to their starting positions and goals).
"A hidden corridor! Fortunately it was labeled!" -- Sadie Doyle, "Beyond Belief: Sarcophagus Now", The Thrilling Adventure Hour