I live in Glenview, Illinois, which is a suburb of Chicago.
As such, I support the Bears, although since I grew up in Maine, I support the Patriots more.
I'm not a big fan of basketball or hockey, so don't really support the Bulls or the Blackhawks. I'm not a big fan of baseball, either, but I'll catch a few games at Wrigley each year since it's such a fun afternoon/evening out. This year I even got invited to one of those rooftop parties you can see on the TV.
I lived in England for 5 years, attending grad school at Oxford. As such, I try to follow Oxford United's progress (oh dear), but don't really support a particular Premiership side, per se. My wife & I were just over there, this past week, though, and managed to take in the Spurs-Villa contest last Monday, which was fun, although the game was a bit crap.