Just noticed the "28 Days Later" banner at the top of the screen.
Great film.
Modding will clearly be specialised for Doom3. That's never been in doubt. But just like everything else there will be editors made available that will take the science out of creativity. I'm sure that's what everyone involved with the game is having to use.
I worked in games for some time as a lead artist.
An artist must remain an artist. To expect everybody to be both artistic and technical is a bit ambitious.
One thing tho. First time out of the box for this game will be a stunning experience.
It's wether it can stand the test of time.
I still play Doom (w. zDoom) today!