So I'm running Village of Hommlet as a PbP game on RPGnet. I must be mad. Reports coming later when we actually get some play in.
Anyway, a player pointed out some awesome conversions of the original Moathouse maps. They look much better than my scans from the 4E module, and since they're made in a tile-based program (Dundjinni), they should work much better with the grid in MapTool.