Yeah, I'm VERY glad I got the directors edition. The Rooster Teeth movie is pretty funny, the prequel is excellently done, and the comic is very well done as well. Plus having 6 cds would have sucked.
... Man, I need to hook you up with this stuff. The US director's version comes with P.A.N.I.C.S. episode 0, which is exclusive to the director's edition (you can get 1-4 on Rooster Teeth's site, www.roosterteeth.com, you know, those guys who do Red vs. Blue?), and a comic book version of the intro to the game. I've been meaning to scan the comic anyways.