Calexico, while excellent musicians, were a bit boring live. Very little stage presence or personality. Mildly entertaining, but I wouldn't bother seeing them again.
Jason Collett (and his band), on the other hand, was much better. He brings much more charisma and presence to the stage, and the music is equally as good as Calexico's, albeit different. I'd definitely see him again, just not with Broken Social Scene.
And speaking of charisma, I had a hunch that I was standing next to Brennser and his lovely wife. Brennser was diligently chomping the gum and daringly displaying copious amounts of chest hair. I was so excited I went home and ate a bowl of Lucky Charms.