I am looking for the same thing and have pretty much decided on the 930 Field/Deer combo with a 28" smooth and 24" rifled slug barrel. Pretty amazing deal at just under $500.
Yes great! Keep the cheapo junkers that work rolling.
I dare say there are possibly a million duck hunters that would disagree with that statement just a bit. Glad I didn't know it before I bought one in 1974.... specifically for waterfowling.......870 wingmaster you can get them used for $250-$350 the only problem is there not good for duck.