The Yanks are paying some of Vazquez’ salary, which I believe the White Sox and the Diamondbacks are splitting. The Yankees are also paying some of Jose Contreras’ salary, between 2 and 3 million. Together, the Yankees are probably paying out between 5-6 million dollars to these two players.
Philadelphia’s paying quite a bit of Jim Thome’s salary. I’m not sure how much, but it’s 22 million spread over three years.
Other possible candidates:
Mike Lowell
Luis Castillo
Chan Ho Park
Phil Nevin
Shawn Green
There’s probably more, but I can’t come up with any. Mostly, look for players who’ve been traded mid-contract and who underperformed that contract or were injured during it.