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					Originally Posted by  rdonj
					 
				 
				There are three things you need to have in order to mod dominions.  A text editor, the modding .pdf in your dominions/docs folder, and edi's database.  The last isn't strictly necessary, but should be considered as a must for anyone who wants to do modding, because it will make your life much easier.  A text editor can be something as simple as notepad.
  
			
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 One minor point - the game expect UNIX style end-lines, so some of the information about formatting in the modding manual won't work with DOS/Windows style end-lines in the mod file.  There are any number of alternative text editors out there that can change the whitespace characters easily.
I'd suggest Notepad++: 
http://notepad-plus-plus.org/
...but the alternatives are plentiful.
Second, once you get the experience of modifying out of the box units/features, you might want to get into creating new units/nations/etc.  For that, you'll probably want a graphics editor that can handle .TGA files (the format the game uses.)
For Windows, I'd suggest either:
Paint.NET: 
http://paint.net/
or
Gimp: 
http://www.gimp.org/windows/
Of course, if you're not using Windows, you'll have a different set of options. :-)