that's a nice Bianchi, so seconded on the U-Lock + cable for the front.
Me, I like the Kryptonite 7" Mini as a good compromise size, and I think using the Sheldon method of locking the rear rim through the triangle is a big help in deterring the jack-breaker attacks. ("if I mangle that rear wheel, there's no point in me stealing this bike!")
also - never let it live outside overnight!