Writing World has details on The New Writer Magazine's Contest. This international contest accepts both prose (including articles and interviews) and poetry, and award prize money for the winners.
They have the rules and an entry form on their site. Submissions must be postmarked by November 30, 2007. The entry fee is 4 pounds (Can't find the pound symbol on my keyboard).
I'm not sure what the exchange rate is now. When I was over there over ten years ago one pound was equal to about $1.80, but if you pay with your credit card, they'll know how much to charge in dollars.