Right now these are some of the rumors for Oswalt going around.
Mets are willing to give deal Milledge and another prospect.
Rangers are willing to give up Danks & Blalock to acquire Oswalt and are still in 3 way talks. Trade for Tejada then trade for Oswalt.
Possibly what could happen is. Nieve & Danks go to Orioles, Oswalt to the Rangers, and Tejada to the Astros.
Tejada talks have died down with other teams.