According to Matthew Cerrone of MetsBlog, the Mets sent cash to the Indians for journeyman minor league shortstop Wilson Valdez. Based on the 31 year-old's hitting for the Columbus Clippers this year, I'd say he's the all-glove stopgap the Mets have been seeking.
Other moves: Ryan Church and Jose Reyes to the DL, top prospect Fernando Martinez promoted. Martinez, just 20, owns a .291/.337/.552 line in 42 Triple A games this year. He could accumulate as much as 132 days service time this year, meaning there's a slight chance he'll become a Super Two Player after 2011.