Now this is a dream coming true right here! Stonesense (alpha) is an open source isometric visualizer for Dwarf Fortress, created by jonask and Solifuge. It can run side-by-side with the venerable roguelike/sim to provide a graphical view of the game. The sprites are being contributed by various members of the DF community.
Here’a video of the mod in action:
Thanks, Michael Komalarajun, for the heads-up!