I need a 'commuting' bicycle I can fold up and take on the train to avoid my current 25 min walk to station and 40 min walk at the other end - anyone got any recommendations? I keep hearing that Bromptons are the best, but does anyone have anything else e.g. Dahon that they would recommend that would be a bit cheaper? Haven't ridden a bike for ages, by the way, so any general recommendations on staying alive will be welcome.