The DVD has been out since January 2002.
September 2nd is the reprice date.
There's a deleted scenes montage thats about 10 minutes, there's a 30 minute making of thing, and there's an audio commentary and as well as an alternate soundtrack with more farts added into the movie.
Everybody here should own it on DVD. And the
Stella Shorts
DVD
Also on the subject of Stella: They are shooting a special for Comedy Central in September. Also they'll be at the San Fran sketch fest this January. I'll probably go if I can.