It's a bit larger than you specified, but Portland, OR would get my vote, too. Absolutely gorgeous, albeit rainy in the winter, but incredibly bicycle, walking, and public transportation friendly. Housing is cheaper than California. Taxes in both places are quite progressive, so if you aren't rich, you are probably better off (no sales tax in OR). Universities, medical school, indie music, awesome restaurant scene, hiking and mountains nearby. The only flaw is the distance to the ocean, but fresh water abounds. My husband feels it would be depressing in the winter, but I love the silvery, overcast winter light. Also, it is the only city in the US with a volcano (extinct) in the center.