Whats wrong with Klingon? I think I still have the 6 disc set of the complete language in a box somewhere hehe. Found it at a yard sale long ago and picked it up for a few dollars. Never tried to learn it but always have the option hehe. Its a cool nerd piece to talk about at conventions and comic book / gaming stores. You would not believe the amount of people trying to talk me into selling it on the odd occasion it comes up in discussion.