After a generation of wishing and waiting, the Golden State Warriors have finally arrived on basketball's biggest stage again. Stephen Curry had 26 points and eight rebounds, Harrison Barnes added 24 points and the Warriors advanced to the NBA Finals for the first time in 40 years with a 104-90 victory over the Houston Rockets on Wednesday night. ''Why not us?'' Curry said to a roaring, golden-yellow shirt wearing crowd after the Warriors received the Western Conference trophy from Alvin Attles, the coach of their last championship team in 1975.