For those who want to see their approximate chances based solely on numbers here you go:
Admissions statistics for specific colleges/major from previous years (under academic unit profiles): http://bap.ucsb.edu/institutional.research/planning.data.book/tables/index.cfm
Another one but specific to college of engineering: http://profiles.asee.org/profiles/7318/screen/19?school_name=University+of+California%2C+Santa+Barbara
Good luck!