3drealms released the src of duke nukem 3d yesterday (and no - it’s not a joke)
maybe some of u guys r interested.
The texture packs for jDoom jHeretic and jHexen are available at:
http://www.doomsdayhq.com/files.php?class=4&type=3
If I read the site correctly they can be used for non-comercial and comercial projects free of charge. Could be nice for 3D folks looking to spice up their worlds.