And you thought you were worked up about the price of coffee.  Colin Firth is immersed in the issue.  The Bridget Jones's Diary star endured a java shower for an ad campaign for the British charity Oxfam.  "If I'm paying nearly $3 for a cup of coffee and some Ethiopian farmer gets 2% of that," he says, "where does the rest of it go?"  Saying he is reluctant to be "just a windbag" on fair trade, Firth has also invested in a chain of coffee shops in London that pledges to compensate the crop's farmers fairly.  He has worked the counter and participated in coffee tastings.  "You swirl, you spit, and someone talks poetry about it," he says."  -- Time Magazine 1 August , 2005