You can throw the 2003 year out, he isn't that bad of a hitter. His 2002 year is reachable, but it's really to hard to tell right now. He is a pretty streaky hitter. A safe prediction would be something between his 2001/2002 year, like 30hr - 95rbi - .270 but personally I think he can have a close repeat of 2002.
A lot of people are divided on him, so we will find out soon enough.