silicon valley is <i>way</i> cheaper than SF, but it's much less friendly to people who don't have cars. If you live near a caltrain and you work for a major corporation, you can probably get away with not having a car (most major companies have company shuttles that go to the caltrain) but it will put a crimp in your social activities.<p>Silicon Valley is essentially suburb. You can pay as much as you want on the high end... on the low end, a room in a house or shared appartment in the "poor" parts of Santa Clara or Sunnyvale might be $650/month.<p>the upside, here, is that things near the train stops are generally cheaper. I rented a 2bed 1bath apartment right over the Lawrence express way caltrain in santa clara for $1250/month total ($625 per person.)<p>If you want to live alone, the low end is $800-$1000.<p>The interesting thing about the valley is that I don't know of any neighbourhoods south of east palo alto and north of San Jose that I'd feel uncomfortable walking around in at night. And most of San Jose is pretty okay, too, so don't be afraid of the low end.<p>Food? in the grocery store, as far as I can tell, it costs about the same as anywhere. If you go out to eat, well, fast food is about as cheap as it is elsewhere. If you want to eat at local non-chains, you are looking at $8-$15 per meal, which is a bit more, I think, than most places.<p>If I were moving here for the social scene, personally, I'd get a cheap shared room close to the hacker dojo in mountain view.