hey fellow foodies! my sister, best friend and her sister are travelling to Napa for a 4 night escape in Sept. we would really appreciate any advice on what not to miss. this will be a first time trip for all of us. coming from chicago and NYC, we are ALL foodies and are up for anything...cheap, expensive, casual, fancy, crazy, chill...just as long as there is good food and wine involved. thanks in advance!