RE: Turkey Guns??
I had an 835 and liked it, but sold it b/c I liked my Browning BPS more. It is a little more expensive, but to me, worth every penny. The major complaint I had about the 835 was the fore arm rattling. Mine was so bad that if I had to hold the gun up long enough for my arm to start shaking, you could hear it rattling.
Other than that, it was a great gun. Patterned like a beast and fit my body really well. Not sure there is a "out of the box" turkey gun that can hang with the 835. If you want to stick with Mossberg, look at the 935. Its the auto version of the 835.
You are going to get a lot of different opinions on this question so if I were you I would just go and shoulder some guns to see what fit your body the best and go from there. If you want to spend a little more money, look at the Browning BPS's, either 3'' or 3.5''. To me, they are more sturdy(sp) than the 835. I have put mine through hell and it has never failed me. I've had it for around five years now. It also patterened better than the 835.