I've been using miniatures for combat, however in a different way to how I would use them in D&D.
Instead of having all the mini's on a gridded combat/area map, I have a sheet with zones marked off for stance. The mini's sit in the correct stance zone to keep track of such things, and enemy miniatures are placed next to who they are engaged with. The only issue currently is if multiple characters in different stances face off against the same enemy it can get a bit weird and need some fudging.
That's and interesting method. I guess if you did it in concentric circles (Forward being the outer circle, then Open, Defensive, Skirmish (if applicable) and Rearward in the centre). You could then have directions where you place the enemies - for example, the Troll could be north, Orc 1 is west, Orc 2 is south, Goblin Archer is east. You then place the characters in the correct circle for their stance, and in the right direction for the enemy they're engaged with. For example, if Drogo is in the Forward stance engaged with the Goblin Archer, you'd place him on the east side of the Forward stance circle.
Just a musing.