It's not going to be easy for you to move out there, since by and large the US is not very friendly to foreigners, in official terms (getting a visa), so why not take a good long trip there? Try and stay a month by renting a room for that time, and just hang out... see what happens, how you like it, what you don't like and so on. You could probably plan for and do that during the summer, although I think you'd be really pleased with how much better winters are in the bay area than at home...