Here's some more on the proposed Adrian Gonzalez to Boston deal with San Diego.
According to the Boston Globe, here are the prospects heading West:
pitcher Casey Kelly
first baseman Anthony Rizzo
outfielder Raymond Fuentes
a fourth prospect not on the MLB 40-man roster
All-in-all, I would consider that a steal for 29-year old (in May of 2011) Gold Glove slugging first baseman in his prime. Now, all that's left is to do the physical today as Mass General and hammer out an extension deal with his agent.