I believe I saw a JK total conversion mod a while back for Jedi Outcast. I don't know if it is still being made.
EDIT: Found this
. Looks like it's dead.
While there is no MotS mod being made right now, jedispy
was interested in possibly doing one. Contact him and see if you can help out.
You probably know about the Dark Forces
Welcome to the site! Be sure to come by Yoda's Swamp
, where you'll get a proper welcome!