SAN FRANCISCO - The Big Unit is heading home to the Bay Area.

Randy Johnson and the San Francisco Giants agreed to a 1-year, $8 million contract yesterday, meaning the 45-year-old lefthander will go for his 300th win with a new team.

Johnson, a 21-year veteran who spent the past 2 seasons with Arizona, was born in Walnut Creek, Calif., about 30 minutes from the Giants' waterfront ballpark.

The five-time Cy Young Award winner has 295 victories - tops among active pitchers - after going 11-10 with a 3.91 ERA in 30 starts last season. *