I'll recommend a gas operated semi auto in 20 gauge. Take a look at the Beretta AL391 or Franchi's 620 or 720 for a small and light weight gun. For a little bigger and heavier gun look at the Beretta's 390, 3901 or the Browning Gold. All of them would make a great choice for all around use. They all have very good quality, a lot of features, and balance well.