Annual per capita costs of incarceration in California: http://www.lao.ca.gov/laoapp/laomenus/sections/crim_justice/...
http://www.lao.ca.gov/analysis_2008/education/ed_anl08006.as...
Education costs are a bit higher than the article suggests, and you are right that they would increase further if building expenses were included. Part of the problem is that most spending is controlled at the county level and many people oppose centralizing education spending or policy at the state or federal level.
Other interesting data can be found at the links provided, albeit a year or two behind the latest budget #s.
http://articles.sfgate.com/2010-05-19/news/20904260_1_sick-i...