I still wouldn't worry about that seat too much. The Democrats are overrepresented in the US House delegation in California as it is. I wish we could target Ellen Tauscher, at the very least. I still don't understand why Bill Baker didn't attempt a comeback in '98.
The Baker district doesn't exist anymore.
One other little detail. You pull up the precincts in the SF metro area, and to find the Bush precincts takes work. He lost almost all of them, in Santa Clara County, San Mateo County (Bush lost them all except for about ten precincts in Atherton and Hillsborough, and lost a majority of them even in those super rich areas), Alameda County (almost all except a few inland over the mountains), SF County (all there of course), Marin County (all there too), Contra Costa County ( most of them). Anything that gets too near to the SF metro area is toxic city for Pubbies. The erosion there has been massive for the GOP. Ditto Santa Cruz and Monterey Counties, and going north up the coast is a disaster too (Sonoma, Mendecino), until you get to Del Norte County, a lumberjack area, adjacent to Oregon.