It has been no secret that veteran ace Roy Oswalt of the Houston Astros has been open to a trade for months, if not a year.At 38-56, Houston is clearly in rebuilding mode, and as was the case for Toronto ace Roy Halladay, the team seems willing to move their longtime star for prospects.According to the Houston Chronicle, the Astros and Phillies are in advanced talks about bringing Oswalt to Philadelphia, a move reminiscent of their acquisition of Cliff Lee in 2009.The Astros want pr...