Dialogue Short Story Contest Deadline: Sept. 30, 2009

Bartleby Snopes Literary Magazine
Bartleby Snopes Writing Contest

Submission Period: Deadline: 09/30/09

Eligible Entry: a short story entirely made of dialogue, must be unpublished

Open to: No restrictions indicated.

Entry Fee: $10 for unlimited entries

Prize: at least $250 (see contest guidelines)

This sounds like a fun challenge. You can't even use dialogue taglines ("he said", "she said") in the story.