MapZone - excellent free texturing tools, No other procedural texture editor gives artists the flexibility of MaPZone http://www.mapzoneeditor.com/

Werkkzeug 3 Texture Editor - alternative to MapZone http://www.werkkzeug.com/home

Other texture makers

Texture maker http://texturemaker.com/news.php

Brickn's Tiles - create photorealistics brick textures http://www.3d-rekonstruktionen.de/bricksntiles/

Wood texture creator http://www.spiralgraphics.biz/ww_overview.htm

Wally - texture editing http://www.telefragged.com/wally/downloads.shtml

Genetica Viewer http://www.spiralgraphics.biz/viewer/index.htm

Texture editor v 0.92 http://www.stud.tu-ilmenau.de/%7Eaiin-in/

Terrain texture generator http://www.insanesoftware.de/index.php?page=freetools/terrain.php