Seventh Star Press has two open anthology calls. Payment is a percentage of royalties.
The first call is "Perfect Flaw: Dystopian Stories" which is looking for spec-fiction stories in any genre. deadline is January 8, 2013.
"Thunder on the Battle Field" is looking for sword and sorcery stories with a January 31, 2013 deadline.
You can find all the details for both anthologies here http://www.seventhstarpress.com/submissions/