Eddie Murray was considered a Hall of Famer long before he retired. There is still some debate whether Jim Thome, when his playing days are done, is worthy of Cooperstown. Their numbers are quite similar, probably more than you might think.
When you factor in the player and the ballpark he'll call home in 2010, Cliff Lee pitching in Safeco Field should be the best fit among players who changed teams this offseason.
In its first season, the new Yankee Stadium was a great home run park. It, however, wasn't a great hitters' park.