Roy Oswalt to Twins or Rangers?

Teams have already started discussing the possibility of trading for Astros pitcher Roy Oswalt, according to multiple sources. Oswalt told team officials that it was time to move on, creating all sorts of speculation as to where he could go. 

The Minneapolis Star-Tribune confirmed a report that the Twins will check in with the Astros about his availability and asking price, which could lead to rival clubs to check in as well. One AL source expects the Rangers to check in on Oswalt, considering it would be a relatively easy switch that would put him right into playoff contention. 

Back to the Twins. If the Twins had Francisco Liriano, Scott Baker, and Oswalt in the rotation would easily make them the favorites in the AL Central. But what would it cost them?

Most likely, the Astros would ask for top pitching prospect Kyle Gibson in any trade for Oswalt. Since Oswalt has a history of back problems and will be a free agent after the 2011 season, it may only take 2-3 prospects to pull off a deal. If the Twins can find a way to pull off the deal without surrendering Gibson, they would be in a great shape down the road. 

Other possibilities for Oswalt include the Mets, Dodgers, and Padres, among others.