Wooah! Don't judge us on how quickly your quieries get answered. Most guys are going to tell you about the search button. The author of Starting Strength has written here and been interviewed. Next, anyone can gain with the methods of the program, especially if you have not been training effectively in the past.
Also, dumbbells are not your best bet. You might make some progress on your bench with them, but you really need a barbell for squats and deadlifts. Really though, use the search button!