7.5 SoundFont Resources

Freepats is a project dedicated to creating a free and open set of instrument patches, in any format, that can be used with softsynths.
GeneralUser GS is a GM and GS compatible SoundFont bank for composing or playing MIDI files.
Percussion-SF @ ArachnoSoft has some nice sf2 for special percussion.

7.5.1 SoundFont tools

Polyphone is a free program that will allow you to build new SoundFonts from scratch.
If you have problems while loading samples, open the sfz file in a text editor and change path for samples or remove setting:
"default_path=YOUR PATH"