Here are rumors I have heard
The Marlins are trying to get Soriano, and if they do, would turn around and trade him right away for porspects. Possible to the Angels for Eric Aybar (to move Miggy back to the outfield, or vice versa), and Mathis.
The Orioles and Astros broke off talk that would've sent Morgan Ensberg,Adam Everett, and Roy Oswalt(that is not a typo) to Baltimore for Miguel Tejada. Houston backed out of the deal because they believed Baltimore would then turn around and trade Oswalt to the Rangers.
Billy Wagner is telling Minaya to make a play for Lidge saying that he could fix his problems in 10 minutes.
Jason Schmidt is available but a trade is highly unlikely.
Ronnie Belliard was traded to the Cards for Hector Luna, and are talking about a deal that would send Jason Marquis to the Mets for Aaron Heilman.
The Mets have a deal in place that would send Anderson Hernandez,Heath Bell, and a prospect to Pittsburgh for Roberto Hernandez and Kip Wells
Loretta,Crisp, and Lowell are all on the trading block, and could all still be moved. One rumor has Loretta going to St. Louis and Belliard getting moved to the outfield. Lowell will likely end up in San Diego. Crisp is getting interest from several teams, but there is no favorites right now.
The Marlins are trying hard to get Carl Crawford, and are offering the D-Rays there pick of players outside of a select few.
The Astros are willing to trade Willy Taveras in order to get Ray King from the Rockies.