Staffordshire Terriers are cool.
Don't get a jack russell. I hate them dogs. Neighbour has one and all it does it bark and go psycho.
I don't know if their suitable, but French Bulldogs are cool. In fact, pretty much any kind of bulldog is cool. I don't think they're very energetic dogs though. I could be wrong, but i think they can be a little bit more "high maintenance" than most breeds...