Soundworks are running another of their short story competitions, with the prize of having the piece recorded by actors and published on the site. You may send as many entries as you like, will retain copyright (although Soundworks will own copyright of the actual recording) and can submit previously published work.
When I mentioned the last competition I thought it sounded like fun and sent in one of my stories. It's been shortlisted!
Suppose that means I should have another try.