Excellent software for mapmakers

[NTJedi]

Agrajag said:
You could also use the HoMM II map editor and random map generator, if you can't get the HoMM III one.

...

BTW, you could also use the Warlords: Battlecry II/III map editor, it has nice blending effects and quite large tiles.

I actually have the map generators/editors for Heroes_III:Complete, Civilization_4, Warlords:Battlecry_III and AgeofWonders:ShadowMagic.
Using GIMP I'm thinking the best images from each can be merged into one map.

What's everyones opinion for the best way to capture the complete map image from these games?