If you've not yet had work published in any format and never won a writing competition, then I strongly urge you to take a look here.
There's £300 on offer for the winner, plus runner up prizes of £50. Your story can be up to 3,000 words in length and it's free to enter. You don't even need to print out your work or find a stamp.
If you're eligible to enter and don't have a try, you'll make me feel as sad as this chap.