For a UC in California (public school): ~$31000 on-campus, $28000 off-campus (see http://www.universityofcalifornia.edu/admissions/paying-for-...).
For a private school in California, ~$55000/year on-campus.
Also leave out the miscellaneous and focus on Tuition fee alone. It looks like UCs are charging almost triple of what you can get from UBC.
Hm... get your Canadian permanent residency and start enrolling to UBC or UWaterloo then? :D
UBC CS program is quite good and consistent :) (excuse me for the marketing) http://www.cs.ubc.ca/~simonsyd/acm/history.php
"In 2011-12, public four-year colleges charge, on average, $8,244 in tuition and fees for in-state students. The average surcharge for full-time out-of-state students at these institutions is $12,526."
If an American is unable to get merit scholarships at top schools, they're likely looking at $100-200k in tuition and expenses for a BS.