The James White Award 2009 has been open since 11 July 2009, but there are only three months left until it closes on 28 February 2010.
"The James White Award is a short story competition open to non-professional writers and is decided by an international panel of judges made up of professional authors and editors."
First prize is £250 and publication in Interzone. Stories must be under 6,000 words, and writers must not be "professional authors" - i.e., have not made three short story sales to markets deemed as "professional" by the SFWA.
See here for the full rules.