Averages scores for 2009 admitted UC freshman:
GPA- 3.82
SAT- 1790
ACT- 26
Averages for UC Berkeley:
GPA- 3.91
SAT- 2,033
Averages for UC Davis:
GPA- 3.94
Averages for UCLA:
GPA- 4.36
SAT- 2,004
Averages for UC San Diego:
GPA- 4.08
SAT- 1,964
Averages for UC Santa Barbara:
GPA- 4.01
SAT- 18,77
Averages for UC Santa Cruz:
GPA- 3.76
SAT- 1787
For more statistics on UC admissions check out this site